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Asus ZenWiFi AX Mini (XD4) Review: The First Complete AiMesh Set

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The ZenWiFi AX Mini (model XD4) is Asus's third purpose-built AiMesh Wi-Fi system, after the XT8 and CT8, and it turned out to be the most complete one in my testing.

So, the third time seems to be the charm, and that's the good news. The bad is this mesh system is also the first dual-band out of the three, with subdued hardware specs. As a result, it's underwhelming in both power and features, making its current sub-$300 street price (for a 3-pack) a tad less attractive.

Here's the deal: If you don't need super-fast Wi-Fi, or you have wired your home with network cables and have a small switch, the ZenWiFi AX Mini is an excellent choice, much better than the similarly specced and more expensive TP-Link Deco X60.

But if you're looking for the same level of features and performance as that of the previous ZenWiFi solutions, the XD4 will probably disappoint you.

Asus XD4 Mesh
The ZenWiFi AX Mini (XD4) includes three identical-looking compact hardware units.

Asus ZenWiFi AX Mini: First traditional AiMesh system

Out of the box, the ZenWiFi XD4 includes three identical-looking hardware units (you'll likely be able to find a 2-pack at some point). However, they are not all the same.

Different router and satellite hardware

Indeed, the ZenWiFi AX Mini is the first AiMesh system that includes two types of hardware: router and satellite (or node). In other AiMesh systems, the hardware units are the same because they are all routers.

But the hardware units of the XD4 still look identical, and Asus calls them all "AX1800 Dual Band WiFi Router". The only way you can tell the two apart is to flip them up.

On the underside, the router unit (model XD4R) has two Gigabit network ports. One is a WAN/LAN port, and the other is a LAN port. The node (model XD4N) has just one LAN port. You can use this port to host a wired device or the backhaul link to the router.

Like all AiMesh routers, the XD4R can work either as the primary router or a node of another AiMesh system. The XD4N unit, however, can only work as a satellite. It can't work as a router since it has no WAN port.

Asus ZenWiFi AX Mini XD4: Hardware specifications

The ZenWiFi XD4 is a dual-band system that doesn't support the 160 MHz channel width required to deliver top Wi-Fi 6 performance.

As a result, the way Wi-Fi 6 works, its ceiling speeds on the 5 GHz band caps at 1200 Mbps when working with a 2x2 client.

Like most entry-level Wi-Fi 6 routers, the XD4 has no multi-gig port. It's also one of a few Asus routers that don't support Dual-WAN or Link Aggregation. There's no USB port, either.

Full NameAsus ZenWiFi AX Mini Mesh System (XD4)
Hardware ModelsXD4R / XD4N
RoleAiMesh Router / AiMesh Satellite (Node)
Dedicated Backhaul BandNone
Wired BackhaulYes
Dimensions (WxDxH)3.54 x 3.54 x 3.14 inc 
(9.0 x 9.0 x 8.0 cm )
WeightRouter: .65 lb (295 g) 
Satellite: .64 lb (290 g)
5GHz Wi-Fi Specs2x2 AX: Up to 1200 Mbps 
2x2 AC: Up to 867 Mbps
2.4GHz Wi-Fi Specs2 x 2 Wi-Fi 6: Up to 574 Mbps
Wi-Fi SecurityWPA3 / WPA2 / WPA 
Channel Width Support20Mhz, 40MHz, 80MHz
Backward Compatibility802.11b/a/g/n/ac
Mobile AppAsus Router
Web User InterfaceYes (Full)
AP ModeYes (as a single unit or a mesh)
USB PortNone
Gigabit PortRouter: 1x WAN, 1x LAN
Satellite: 1x LAN
Link AggregationNo
Processing PowerQuad-core SoC processor, 
256MB Flash memory, 256MB RAM 
Asus ZenWiFi AX Mini XD4's hardware specifications

Asus ZenWiFi AX Mini XD4: Detail photos

Asus ZenWiFi AX Mini XD4 Mesh System 14
The ZenWiFi AX Mini (model XD4)'s retail box.

Asus ZenWiFi AX Mini XD4 Mesh System 7
Out of the box, the three hardware units of the ZenWiFi AX Mini look identical. The router has a label on it for self-identification, though.

Asus ZenWiFi AX Mini XD4 Mesh System 8
That's because, from almost all angle, all units of the ZenWiFi XD4 looks the same. Here's the front side.

Asus ZenWiFi AX Mini XD4 Mesh System 9
Here from the top. By the way, note how tiny the hardware unit is.

Asus ZenWiFi AX Mini XD4 Mesh System 3
You have to look at the underside to see how the ZenWiFi XD4's router unit, model XD4R, has two Gigabit network ports.

Asus ZenWiFi AX Mini XD4 Mesh System 4
Indeed one of the XD4R's two ports works as a WAN/LAN port.

Asus ZenWiFi AX Mini XD4 Mesh System 10
The node unit, model XD4N, has just one Gigabit LAN port.

Asus ZenWiFi AX Mini XD4 Mesh System 5
You can use this port to host a wired client or link to the router unit via a wired backhaul.

Asus ZenWiFi AX Mini with Adapters
Each hardware unit of the ZenWiFi AX Mini uses a quite large power adapter.

Non-pre-synced hardware, for now

Setting up the ZenWi-Fi AX Mini is like that of any AiMesh system. First, you set up the router unit just like you do any router with a web interface. (Alternatively, you can use the Asus Router mobile app for the job, but I always prefer the interface.)

This step is easy and took me less than ten minutes. The XD4R, like most Asus routers, can even take the backup file from another Asus router, making it very convenient for an upgrade. Then came a bit of an unpleasant surprise.

Since both the ZenWiFi AX and ZenWiFi AC have their hardware—each includes two identical routers—pre-synced, I was expecting the same with the ZenWiFi XD4. It only makes sense considering its satellites are not routers.

Well, that wasn't the case with my review set. (Per Asus, future sets will likely be pre-synced). I had to add the two nodes to the router manually to form a mesh. It wasn't a huge deal—the AiMesh setup process is straightforward—but it did cost me another 10 minutes or so. And then, there was even more.

A firmware update hiccup

Out of the box, the XD4 uses firmware version The setup process didn't prompt me of a new version, nor did the interface subsequently.

ZenWiFi AX Mini AiMesh Setup
Out of the box, the ZeWiFi XD4 comes with pre-release firmware (note the version number). Also, the review set's hardware units are not pre-synced, and you'll need to add the nodes to the router manually.

However, as a standard practice, I checked with Asus's website anyway, found a more updated firmware, version, and decided to do a manual update. It's interesting, though, according to Asus's site, this version is actually the initial firmware release.

The update went through no problem, but afterward, I noted that the mesh nodes were no longer part of the system, even though the process didn't cause the router unit to reset. Long story short, I ended up having to reset the nodes and add them back again.

In other words, the firmware update seemed to break the mesh. The fact Asus shipped the XD4 with a pre-release version might have been the culprit. But we need to wait till a new firmware is available to find out for sure.

So in all, it took me almost an hour to troubleshoot and get the ZenWiFi AX Mini up and running, much longer than the previous sets. The good news is that was the only hiccup I had during the testing.

First AiMesh system with real Guest networking

Yes! I'm happy to report that the ZenWiFi AX Mini is the first AiMesh I've tested with a fully functional Guest network feature.

Specifically, it comes with two additional (optionally) isolated networks (one for each band), and you can make them propagate throughout the mesh system.

ZenWiFi AX Minis Guest Network Setting
The ZenWiFi AX Mini has a new Guest networking section where you can choose to make the Guest network available to all AiMesh nodes or just at the router.

The Guest network is only available at the router unit in all previous AiMesh sets I've tested, including the ZenWiFi AX/AC. Hopefully, this means Asus will soon release firmware to make the Guest network available in all other systems, something the company has been promising its users for a long time.

Until then, the true support for Guest networking means the ZenWiFi AX Mini is the first complete AiMesh system to date.

Notes on Guest networking

ZenWiFi AX Mini can work with other AiMesh routers, but in this case, for now, Guest networking no longer works as intended. Specifically:

  • Adding another AiMesh router as a satellite in an XD4 system, and this node will not broadcast the Guest networks.
  • Using the XD4 hardware as satellites hosted by another AiMesh router and the Guest networks will remain at the router unit.
ZenWiFi AX Mini Hosting other AiMesh Router
The XD4 can host any other AiMesh router as its node—the Lyra in this screenshot --, but in this case, that satellite node will not broadcast the Guest networks.

ZenWiFi AX Mini (XD4) vs. ZenWiFi AX (XT8): Similar yet very different feature set

For the most part, the ZenWiFi AX Mini shares the same web interface and feature set as that of other ZenWiFi systems and most Asus routers.

Unfortunately, while the XD4 does have a couple of things unique for itself, most of the common features are now stripped-down compared with previous models.

ZenWiFi AX Mini AiMesh Interface
The ZenWiFi AX Mini's web interface is similar to that of other Asus routers.

ZenWiFi AX Mini’s core features

Following is the list of what you can expect from the XD4. For comparison, when applicable, I also added screenshots of the equivalents in the XT8.

Universal setting restoration

Again, like most Asus routers released in the past couple of years, the ZenWiFi AX XD4R router unit can take the backup setting files from other Asus routers.

As a result, if you want to upgrade an older router to this mesh system, back up that router's settings to a file, then restore it to the XD4R. Most of your network's configurations—including those of an AiMesh system—will remain the same with the new router.

Note, though, that it's always better to set up the router from scratch to avoid possible setting conflicts.

A robust full web interface with a better AiMesh section

The ZenWiFi XD4R uses the same interface as that of other Asus routers. It has lots of settings and is responsive.

ZenWiFi AX Mini AiMesh Optimization
Note the AiMesh Optimization feature.

What's most interesting is that the ZenWiFi AX Mini's AiMesh section now has a new "Optimization" function. Supposedly, it automatically optimizes the links between the router unit and the nodes. In the future, Asus might add this to existing AiMesh routers.

Helpful mobile app

Since the interface can be overwhelming for novice users, there's also an optional Asus Router mobile app for setup and ongoing management.

The app is well-designed with a good level of access to the router. You can also turn on the Dynamic DNS-based remote access without having to have an account with Asus.

Neutered AiProtection

AiProtection includes a free-for-life real-time Network Protection powered by Trend Micro and Parental Controls. Unfortunately, on the XD4, both are now seriously stripped-down compared to that of the XT8.

AiProtection ZenWiFi AX Mini
The ZenWiFi AX Mini's Network Protection section. Compared with that of the ZenWiFi AX (below) to see the difference.
AiProtection ZenWiFi AX
The Network Protection section of the ZenWiFi AX.

For example, Network Protection lacks the Two-Way Intrusion Prevention System (IPS) section, protecting the network from spam, DDoS, and other attacks. And the Parent Control is really just a time-based Internet access block.

Parental Controls ZenWiFi AX Mini
The Parental Controls of the ZenWiFi AX Mini is just a time-based Internet blocking function.

Parental Controls ZenWiFi AX
Here are the Parental Controls of the ZenWiFi AX. Note the differences.

Useless QoS feature

The ZenWiFi AX Mini has a QoS section that's both poor and non-functioning. In fact, other than turning it on or off, I had have no idea what it did. It's a far cry from that of the ZenWiFi AX.

QoS ZenWiFi AX Mini
It's unclear what the ZenWiFi AX Mini's QoS does.

QoS ZenWiFi AX
The ZenWiFi AX has the traditional Adaptive QoS that has a lot more to offer.

So in all, the ZenWiFi AX Mini has the least features compared to other Asus Wi-Fi 6 solutions. But it sure has enough for you to customize a network to a certain extent. Standard stuff like Dynamic DNS, Port forwarding, VPN server/client, Network tools, etc., is all there.

(As usual, the XD4's features and settings can change via firmware updates. So check the firmware release notes for details.)

ZenWiFi AX Mini: Reliable performance

I tested the ZenWiFi AX Mini for more than a week, and apart from the hiccup with the firmware update mentioned above, I had no other issues.

The system passed my 10-day real-world test with no disconnections, and both of its main and Guest Wi-Fi networks proved reliable.

Comparatively excellent throughput speeds

As for the throughput numbers, I didn't expect a lot considering the XD4's modest Wi-Fi specs and lack of a dedicated backhaul, but they turned out to be pretty impressive.

ZenWiFi AX Mini XD4R Router Performance
The ZenWiFi AX Mini XD4R router's performance

As a single router, the ZenWiFi XD4R did well with my 2x2 Wi-Fi 6 clients, which could connect to it at 1.2 Gbps for the most part.

At a close range, I got the sustained copy speed of some 830 Mbps. And at 40 feet (12 m) away, the connection averaged more than 640 Mbps. These sure were better than the TP-Link Deco X60, as well as a few dual-band routers.

In Wi-Fi 5 tests, my 4x4 client scored some 676 Mbps at close range and almost 550 Mbps father out. Amazingly those were better than the ZenWiFi AX XT8's.

But the ZenWiFi AX Mini is a system. For this reason, the performance of the node (satellite) unit is essential. And as a system sans dedicated backhaul, it was clearly behind its older cousin.

ZenWiFi AX Mini XD4N Mesh Performance

Specifically, the XD4N indeed suffered from signal loss, registering the sustained speed of 390 Mbps and 309 Mbps at close and long ranges, respectively, when working with a 2x2 Wi-Fi 6 client.

My 3x3 Wi-Fi 5 client did slightly worse at 324 Mbps and 286 Mbps for close and long distances, respectively. Overall the XD4N was markedly faster than the TP-Link Deco X60 and slightly outdid other dual-band satellites, including the Asus RT-AX3000.

Decent range, switch needed for wired backhaul

As a single router, the XD4R had about the same range as the RT-AX3000 in my testing. And that was quite impressive, considering it's much smaller. So as a single unit, it can handle a small home of around 1500 ft² (140 m²) to 1800 ft² (167 m²).

With all three well-placed units, you can expect to cover around 4000 ft² (372 m²). But, of course, your mileage will vary depending on your home.

One thing is for sure, though, if you choose to use the ZenWiFi AX Mini via wired backhaul, this system will work out quite excellently. I tried that out briefly and was able to get the same data rates out of the satellite units as those of the router units.

By the way, again, it's important to note that you will need a switch if you want to use both of the nodes with wired backhauls. That's because since each hardware unit has just one LAN port, you can't daisy-chain them.

Asus ZenWiFi XD4's Rating

8.1 out of 10
Asus ZenWiFi AX Mini XD4 Mesh System 12
8 out of 10
8.5 out of 10
Design and Setup
7.5 out of 10
8.5 out of 10


Reliable performance

Improved AiMesh feature

Guest networking works throughout the system

Useful network settings and feature


No dedicated backhaul band or 160MHz channel width support

No multi-gig port, Dual-WAN, or Link Aggregation

Stripped-down, borderline useless QoS and Parental Control features

Limited number of network ports; switch needed for a complete wired backhaul setup; not wall-mountable


The Asus ZenWiFi AX Mini (XD4) is the most subdued AiMesh system to date, yet it managed to be the complete one by delivering all the functions one might expect from a mesh of its type.

In a way, the system offers a taste of what you might be able to expect in existing AiMesh systems via future firmware updates.

Overall, if you have wired your home with network cables and don't have many wired devices, this is an excellent mesh system to get. You can also use it as the node(s) for another more powerful, feature-rich dual-band AiMesh router, such as the RT-AX8xU.

Again, the XD4 will work fine in a wireless setup by itself, but in this case, don't expect real Wi-Fi 6 speeds and top Asus features from it.

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214 thoughts on “Asus ZenWiFi AX Mini (XD4) Review: The First Complete AiMesh Set”

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  1. Hi Dong,

    I have been quite pleased with this XD4 mesh in my wired backhaul system with gig service – it delivers the speed and coverage I need for a great price. However, are the missing security features compared to a full-featured AIMesh system/router, significant enough that I should seriously consider adding a full featured AIMesh router just to get those security features? Of course, it would more than double the system cost.


  2. I love the coverage these little guys offer. Right now they are on sale for $180 for a pack of 3. That is less than I paid for just one tri-band router in my other setup (AE11000 and two XT8) They aren’t as capable but the signal is strong and I have much better signal than with my old TPlink setup. If use them with wireless backhaul and I am still really happy.

    My question is if I can add more nodes. I don’t see why not, but ASUS doesn’t seem to sell them individually. Has anyone built a mesh network using more than 3 Mini nodes? I realize I can use some other model but it is nice to keep them all the same for compatibility reasons.

      • Thanks, Dong!

        In case anyone else was wondering I managed to find another XD4 on eBay and connected it to the system. It works just fine and expanded my coverage.

        I imagine there comes a point of diminishing returns, especially with a wireless backhaul, but if someone needs a cheap mesh with lots of coverage then two 3 packs of XD4s with 6 nodes can cover a lot of ground for under $400.

  3. Hi Dong,
    I am planning to use an AX82U or AX86S (not yet decided) as a main router in my new apartment. The apartment has a patch panel and there are LAN points in each room. I am planning to place a 2-pack XD4 in two of the rooms. The XD4s will connect directly to the main router via ethernet backhaul.
    Now, I am also looking to connect my PC into the XD4 via ethernet and was wondering about the following:
    1. If I place a switch at the XD4 node unit (which has only one ethernet port), can ethernet backhaul work at the same time while providing a connection to my PC? Or is it an “either or” thing?
    2. If on the other hand I connect my PC to the free ethernet port on the XD4 router unit, that should work right?
    Thank you very much!

    • The answers are yes for both. You can also place the switch in front of the XD4. Check the AiMesh posts in the related box (top) for everything relating to AiMesh.

      • Thanks, Dong! I never really saw it that way before though now I realise that in the case of a node unit, “behind” or “in front” is the same given that there is only one LAN port on the node unit.

  4. Your review is spot on. I have a Asus RT-AX3000 Router and added the ZenWiFi AX Mini as nodes wondering what the best settings are as my nodes disconnect randomly .

  5. Hi Dong.

    Great review! I have a question.

    I currently have an AX86U. Can I use the XD4 as an extender? However, I only have two data points in the house.

    1. In the living room (Where my AX86U is plugged in to)
    2. In my bedroom.

    Together with the AX86U, I have a Samsung mesh system (which I had bought before getting the AX86U) but it is annoying that my devices are always inter-switching between two different SSIDs.

    With the XD4, will I get a single SSID throughout my whole house?

    I am planning to get the 2-pack XD4 to replace my Samsung mesh. So the plan is to keep my current AX86U in my living room as the main router. 1 x XD4 as a node in my bedroom (connected via ethernet cable). 1 x XD4 as a node in my parents’ bedroom (to be connected wirelessly and act as an extender). Will this ultimately only show a single SSID, instead of two different SSIDs?


  6. Hi Dong,

    I recently purchased a three pack of the XD4 on after reading your review. I thought I’d let you know that the pack I received consisted of three completely identical router units (instead of the 1 router + 2 satellite units you mentioned in your review). All three units had 1 WAN and 1 LAN port—I picked one at random to be a router.

    I thought perhaps it might have been a temporary change due to supply shortages but the setup manual also made no mention of different router/satellite hardware.

    Thought I would update you on this.

    Thanks for your review. It really helped me make a decision and the system is working great.

    • Thanks for the update, Al. It might be the case where you are or it was a fluke. But that was definitely better. 🙂

    • I’m in the same boat.

      Bought a two-pack and both were the router (XD4R). Not only that, they have 512MB RAM! The box still lists 256MB.

      I’m guessing parts shortage lead to the change. Although, I wonder what other components may have been swapped out?

  7. Hi Dong,

    Your articles are very thorough and informative – thanks. I currently have an old RT-AC68U, which has been excellent. However, we have just moved and the WiFi signal does not reach all parts of the new house (and specifically the study!).

    I am thinking about setting up an AI Mesh to extend the range, without spending too much. There are some wired network ports in the house, but not in the study – although there is one in the room on the other side of the wall.

    I was thinking about getting a couple of Zen Mini mesh, like the CD6 or the XD4 so that I can have one wired and one wireless.

    What would you recommend?



  8. Hi Dong,
    Thank you for the XD4 Review.

    Can you comment if this would be better than my current Tenda MW6?

    I currently have a 3 node Tenda MW6. My router unit is located in the Bedroom 2nd Floor which obviously gets the correct speedtest (i have 300mbps u/d). on the hall way just outside the room i get about 190ish -200 as it is separatrd by the door/wall from the bedroom, the 3rd in the living room downstairs is what i am having issues, i can only get 90mbps if connected on the lan port (for the tv) and just about 40mbps for wireless connections.

    If I buy me a 3pc xd4, which will be connected thru AI mesh, as my router is a Asus Tuf 5600ax, will i get a better performance? (maybe asus has better antennas?) or will i get more juice if I get additional 2 x ax1800 (ax55 from asus)

    Reason for getting asus is I want to maximize AIMesh so there would be less wires (no need for a wired router node)

  9. Hi Dong, I bought a pair of ASUS zenwifi ax (XD4) with wired backhaul, following your advice. Very happy with them(usually 500 Mb/s all around the house). I have 2 questions:

    1.- I see 2(1 per node) hidden SSID’s (5ghz band) Is that normal? As I have ethernet backhaul, should those ssid not exist?
    2.- Some times I see in the web asuswrt the option ‘target wake time’ disabled, when I set it up enabled.(I have smart connect set) I don’t understand.

    Thanks for your fantastic web!!

  10. Hey Dong,

    Hope you are doing well! I’ve been using this zen ax mini and it’s been great for my house (Spectrum cable at 300mbps for a 2000 sq ft house). BUT I recently upgraded to ATT Fiber so I’ll have 1GB! I’m excited but was thinking I should upgrade to a single Zenwifi XT8 and just continue to use my minis as wireless mesh nodes. I don’t mind replacing but do you think the minis can handle the 1GB throughout the house?

  11. Hi Dong,
    I finally bought the Asus XD4 2-pack. Simply impressive the coverage they have. They are perfect using wired backhaul.
    There was an offer on the pack of 2 on Amazon from my country. And the 3-unit is much more expensive.
    For an area where the coverage is weaker (a site that is already quite remote), what do you recommend buying? Trying to find a loose unit from the XD4 or something like the Asus RP-AX56?

  12. Hello & thanks for this helpful information to learn from. I couldn’t find an answer (but maybe it is there) to my situation. I connected the ZenWifi AX Mini XD4 (the router cube) via Ethernet cable to my Asus AC3100 router (the AC3100 is the primary router for my house). The AX Mini XD4 router-cube shows as connected in the Aimesh screen.

    – But I’m confused, do I have to now set-up the AX Mini’s router settings? Or is that only something I do only if the AX Mini router-cube is acts as the main/primary router for the house?
    – Is it even possible to access the router screens for TWO routers if you have them connected? How?
    – Can I now connect/set-up the two other AX Mini cubes? (they will probably have to be set-up as wireless)
    – Ultimately how do I know if the AX Mini system is working as it should be? Is it just by checking with a wireless device to see if the connection is stronger in an area where a Node is?
    – Will a wireless device naturally connect to the nearby Node? Or will it still connect to the main AC3100 router?

    Thank you again for your help.

  13. Thanks for amazing content.
    I have a question though. I have a wired backhaul and already using a pair of XT8. For additional nodes can I use XD4s w/ my XT8 mesh system. Would I be able to modify settings smoothly as currently (eg. system settings, guest network etc.)

  14. Hi,

    Love the site, appreciate your expertise.

    Is it possible to have one node be wired to the router, and the other to be wireless? Any issues with this? In this scenario, does the hardwired node need to be connected to a switch, or can you go direct to router?

  15. Hello Dong,
    I have a quick question. I hope to use XD4 system. I wonder if I can connect wired devices to the router with a switch? For example, I have a desktop and a printer that connects with wires. I’m also going to mesh the system with wire. Is it going to work?
    Thank you!

  16. Hey Dong – been a big fan since your days at… that other website. Thank you for this fantastic review. It got me over the hump and I pulled the trigger on the xd4 (upgrading from older Google Wifi 3-pack). I’m going to wire up the backhaul, but am still debating placement. Can you give any guidance as to how close/far apart you’d suggest putting these units for optimal performance? I’m in a 2500 sq ft split-level and hoping for some outdoor coverage as well for the deck/yard. Thank you!

    • Glad you found me here, Tomer. Since you have wired backhaul, the distance is not that important, but basically, you don’t want each node to overlap another in Wi-Fi coverage (at least not too much). So you want to put them at the far end of the house, instead of one at one and another in the middle. That depends on your wiring, of course, but generally, you have a lot of wiggle room. Other than that, you’re good. For more, check out this post.

  17. Excellent review and site; I just discovered it.

    I installed the XD4 at my mother’s house and have been happy with performance. However, I forgot that she used a USB drive connected to an Airport Extreme for her backups. With the lack of USB port, how can I best add a drive to this configuration?

      • I understand from reading your other posts and comments that there are circumstances where you recommend another main router for expanded features and performance. In my case, the ability to connect a USB drive is a necessity.

        I neglected to mention that I am using wireless backhaul for the XD4. Another commenter with a similar setup but wired backhaul moved forward with an RT-AX86U and I am wondering if, in my circumstances, that would be acceptable, if not ideal based on your combination guide. The alternative would be to return the XD4 setup (although I like it and the performance even wirelessly is adequate) and try the XT8 wirelessly, but for my mother’s house with a strange layout, I preferred having three nodes.

        Again, many thanks for this treasure trove of a website.

    • Thank you for the response.

      Would something like a WD Mycloud also be a solution just to handle the Time Machine backups?

      I’m wondering if the extra router would be overkill for her purposes and I know she will not want to plug in a drive frequently to her laptop.

  18. Hi Dong – thanks for a great site!

    Some advice – currently using a powerline adapter from main router to rest of house because of crazy positioning of my fibre line (200/200mbps) into the house – through the floor of a concrete room with single door! Thinking of replacing the powerline adapter with an XD4 wireless backhaul with the rest of my network connected to the satellite unit via unmanaged switch. About 12ft between Satellite unit and Router. I’m hoping I’ll get more than the 100mbps max I get from the powerline adapter, what do you think? Think the XT8 is overkill for a 200/200 line?

  19. I bought the XD-4 to replace my nest/google Wi-Fi that I wasn’t impressed with, but I won’t get into that now.
    One item I miss on the XD-4 is the device traffic analyzer to view how much data each device is using. I see the Asus GUI does have this but not for the XD4. My question is, if I was getting another Asus Aimesh router to add to network that did have traffic analyzer would it work if the other units were the XD4s? My assumption would be the new router would be the main router and the XD4s the nodes.

  20. Hi Dong,

    Thanks so much for your excellent reviews and information. You helped to make upgrading my home network a fun project.

    I have Xfinity 800 Mbps down, 20 Mbps up. I’m using a Motorola MB8611 cable modem and Asus Zenwifi AX mini XD4 3 pack. The XD4 nodes have wired backhaul but I disconnected those wires for the test I describe below. The Asus router has the latest firmware version. AiProtection is enabled but I haven’t changed any other default settings.

    When I log into the Asus router and do an internet speed test under the QoS section I consistently get about 940 Mbps down, 25 Mbps up – so the router has a better than expected connection. However, when I connect a device directly to the router using a wired connection (no switch even) I get in the range of 400 Mbps down and sometimes lower. Upload speeds stay consistently at 24 – 25 Mbps. No other wired devices are connected and I’ve confirmed the device has a gigabit ethernet adapter. I’ve also tried a different device via usb C with the same results. I’ve tried multiple cat5e and cat6 cables but no change. If I unplug and switch to wifi on the same device and I’m close to the router I will get 650 Mbps or a little more using wifi 5.

    Why would the wired connection to the router be so much slower than the incoming speed to the router? Why would it be even slower than the wifi connection?

    Thanks in advance any help.

      • Thanks for the further advice and here’s an update. Enabling jumbo frame did not help, but I now suspect the devices used to test. Even though the specs say they have gigabit ethernet adapters, something must be limiting their speed. I say this because, with jumbo frame disabled, I tested the wired connection from the router with a brand new laptop (Asus Zenbook). With that computer I see the same speeds as the router input (~940 Mbps).

  21. Dong, I’ve spent many hours on your great site. Thanks for your reviews. Need some advice as I am super confused with which way to go. I have a ubiquiti UDM and UAP Pro’s across my house. The UDM reboots constantly and I’m not taking full advantage of my gig FIOS. The computers at the other end of my house complain of poor zoom performance and lag. I just picked up a AX88U, to replace the UDM, and I am really at a loss for the nodes. I dont really want to spend a ton of money per node, but I am looking for wifi 6 nodes and I have cat5e throughout the house to use a wired backhaul. In your mind what’s the fastest nodes I can get for the lowest price? Majority of clients are wifi 5, but as new phones and new macs enter the house we will march towards wifi6 taking over. I dont want to spend the money yet for 6e.

  22. Hi Dong,
    first of all – thanks a lot for your work, I learned so much from this website.
    I would appreciate your opinion on my situation. I am trying to decide if I should go for dual-band wifi6 (this zenwifi AX mini sound like best deal) or tri-band wifi5 (zenwifi CT8, or maybe even some Orbi).
    It needs to be wireless, unfortunately. Also my internet is rather modest – about 150Mbps. On the top of that, budget is limited, that is why I do not consider ZenWifi XT8, which would be a dream.
    It really comes down to decision between wifi6 (I do have some devices that can work on that) or tri-band. What is your expert advice?
    Thanks a lot.

  23. Hi Dong: Thanks again for your help.

    Would you happen to know the size of the Barrel Power connector? I would like to install these with a POE splitter.

    Thank you for your help.


      • My apologies if I wasn’t clear. I am trying to find out the size of the barrel power connector that comes with the power brick for the Zenwifi mini. For example 3.5mm x 1.2mm.

        The reason being is that I am using Ethernet backhaul and would like to power the nodes via POE by using a POE splitter. In order to buy the correct splitter, I need correct size of the barrel connector that delivers power to the Zenwifi mini.

        If you don’t have the spec. Please let me know if the Zenwifi CT8 power connector will fit as I was able to find the size of that, so if it’s the same size.

        Please let me know if happen to know this info.

        Thanks again.

  24. Hi Dong

    Thank you for all the great posts.

    I currently have 4 nodes set up with google wifi (original version). I switched from a RT-AC3100. My coverage is pretty good but I have a few dead spots and in the back yard it’s abysmal. House is 3300 square foot 2 stories with a basement. In a subdivision so I can see a ton of ssid’s from neighbouring homes.

    My Demarcation point is in the basement for my fiber modem.

    I was thinking of using my RT-AC3100 as the main router in the basment and hardwiring either:

    3 PCs Zenwifi Mini
    2 PCs Zenwifi CT8

    My primary goal is to clean up the few dead spots and increase coverage to the back yard.

    The Node that would be on the main floor is right up against the outside wall to the backyard.

    Which would be the best coverage? Is it a good idea to use the RT-AC3100 as the mail router?

    Do you have any other suggestions?

    Thank you.


  25. Hello Dong.
    I have a 500/100 Internet connection.
    I use a rt-ax55u as the primary router.
    I want to use 2 dx4 to form an imesh system.
    If i use a powerline adapter (10/100 devolo) to wired backhaul the nodes…
    1- Will i need a switch also?
    2- Will the wifi speeds in the nodes be slower (because of the devolo 10/100)?
    Hope you can help me.
    Thank you.

      • I can’t wire the house, it’s not mine.
        That’s the reason for the powerline.
        If i get a new powerline with a gigabit port, do you think it will run better (with speeds near 500/100)?
        Thank you again, sorry to take your time.

        • No, Powerline is very slow, doesn’t matter what port it uses, Joao. It’s the connection between the adapters that’s slow and unreliable. Again, it might work, but it’ll be VERY slow, just keep that in mind. You’re better off getting a tri-band mesh system and use it in a fully wireless setup.

  26. Hi Dong and fellow questioneers. Great review, thanks. I’ve been eyeing up the full-fat XT8 for a while, but shying away from the cost, but as I only have a 70Mbps fibre connection anyway, the XT8 really would be overkill. Would the bandwidth on offer with the mini be enough to ensure I can get full value out of my poultry 70Mbps connection all over the house, assuming adequate node placement etc? I’ll be using wireless backhaul rather than wired. Shame about the watered down AI Protect on these units. I wonder why they can’t just roll out the same parental controls etc as on other Zen units. Thanks again.

      • Hmm. I was worried you’d say that! With 3 mischievous boys in the house the full-fat parental controls are really important for us, and the lifetime AI Protect without a subscription fee is one of the key features of the ZenWiFi range as far as we’re concerned. So it’s doubly frustrating they didn’t go with a full implementation of that protection in these units. It feels like they’re needlessly doing themselves out of a key market demographic. Thanks for all your help though. Keep up the good work.

  27. I have my new XD4 set up and working well, but I have a dead spot that is impacting 3 outdoor wireless cameras. I have a 6,000sf house, so I think my only option is going to be adding another node or extender, but I don’t see anywhere to buy a single XD4 node. If I can’t get another node, do you have a recommendation on which extender would work best with the XD4 system? All 3 of my nodes are connected via ethernet, so the additional extender would be the only device that would be relying on wifi to extend the signal. Thank you!

  28. Thanks Dong for the review – I was wondering where you went after cnet – Just upgraded to the XD4 and love it – leaving my aging google WiFi which recent software issues were causing problems – even when it was hardwired.

    Ran into an issue – The LAN was only giving my wired back haul only 100 mpbs speed – I was digging into the setting trying to figure out what the heck happened – Found out I damaged the cable that was supplied with the router to the internet switch. I do not know how it happened – after hours digging in the firmware and reboots and digging in the forums 😛

    Luckily everything is smooth sailing

  29. Do the satellite support poe? Would love a mesh system where I can hide the satellite and not having to use a power cord.

  30. You say you need a switch to setup wired backhaul b/c of the limited ports on the units (makes sense). Can you recommend a switch for us? Cheap/reliable, etc…


      • Can I use managed switch, too?
        I want to connect all 3 units wired (as backhaul) to my managed TP-Link switch. I will use it in AP mode using my TP-link router (it has better parental control then asus). (main unit I will connect with WAN port to a switch with internet).

        • No, Marcin. The hardware will likely not working via a managed switch, unless you turn off the switch’s features and make it work as an unmanaged one.

          • Thank you. I have more questions 🙂
            1. Did you have a chance to physically connect 3 units via ethernet-backhaul and unmanaged switch? I am asking because I spoke to Asus support in Poland and Germany and they say it won’t work. They wrote to me that I can only connect the units directly – without a switch. Therefore, I think that 3 pieces cannot be connected at all – because there will be no LAN ports.
            Honestly, I have already bought the XD4 and I am wondering whether to unpack this device (then I will have a problem with the return)

            2. The question is whether the Asus XT8 would not do better in a two-level house with an Ethernet backhaul connection (ports are enough here)?

            3. I assume that the wifi system will work if I do not use it in router mode (I want to stay with my old TP-Link router because it has better parental control).

            Thanks in advance for your help

          • Hey Marcin,

            I’m no Mr. Ngo, but I will give you my experiences on the XD4s that I’ve had for over half a year now.

            1. I have been running the XD4s in wired backhaul via an unmanaged switch (TP-Link TL-SG108) with no problems whatsoever. It is quite strange that Asus’ support team would think otherwise not to mention the fact that they would even go further to suggest an impossible solution. Perhaps they thought you were referring to the XT8s?

            2. Personally, I’ve never owned the XT8s so I cannot say if that set would be better than the XD4s wired backhaul in a 2-story home. I will say that I’ve been running my XD4s in my 2-story that is ridden with concrete walls that not even 3 Nest Wifi units could save me (granted this config was not run in wired backhaul) and I only have good things to say about Asus after making the switch. Having another “puck” for a price difference of almost $200 made it a no-brainer for me.

            3. I believe you can set the XD4s to run in “AP Mode” and keep your TP-Link as the main router.


  31. Hi! What a great review.

    I have a question. I already have a pair of XT8s and wondering if I could mesh them with the AX mini DX4s?

    Thank you!

  32. Hi Dong, can you help me out? I just purchased ASUS ZenWifi AX Mini (XD4) – 2 units and I am quite disappointed with the WiFi performance.
    Not sure if I did not set it up correctly, but here are some details:

    1. Internet package subscribed: 800Mbps down / 200Mbps up
    2. Mode: Wireless router mode / AiMesh router mode
    3. 2-story house. Main router(R) is ALWAYS at the second floor. Node(N) is intended to be placed at the living room (ground floor)

    Internet speed test:

    Device: ASUS A43S laptop
    a. connection: R —LAN— laptop
    speed: 693/208

    b. connection: R —ethernet backhaul— N – LAN – laptop (R & N are on the same floor)
    speed: 686/208

    Device: Macbook (A1398)
    c. connection: R —5GHz Wifi— macbook (at living room, N switched off)
    speed: 405/205
    speed: 451/200
    speed: 495/182

    d. connection: R —5GHz Wifi— macbook (at 2nd floor, 2 meters away from R)
    speed: 280/160

    e. connection: R —wireless— N – macbook (at living room, 1 meter away from N)
    speed: 284/168
    additional test: R —ethernet backhaul— N – macbook
    speed: similar to above, regardless of location of N, speed struggles to exceed 300Mbps

    Note: Observe that the speed in connection c is faster than connection e, even when it is farther away from the unit

    Device: iPhone 12 Pro
    f. connection: R —5Ghz Wifi— iPhone (at 2nd floor, N switched off)
    speed: 568/204

    g. connection: R —5GHz Wifi— iPhone (at living room, N switched off)
    speed: 284/144.

    h. connection: R —wireless— N – iPhone (at living room, 1 meter away from N)
    speed: 199/125
    additional test: R —ethernet backhaul— N – iPhone
    speed: similar to above, regardless of location of N, speed struggles to exceed 300Mbps

    Experimental tests:
    1. switched R & N role
    2. reset router to factory setting
    3. enabled Smart Connect
    4. enabled Wi-Fi Agile Multiband
    5. switched to Access Point (AP) mode
    – all tests does not show significant improvement on the WiFi speed

    1. LAN connection speed through R or N is as expected
    2. WiFi connection speed is slow, inconsistent, and varies significantly
    3. Expecting the WiFi speed to be at least 600Mbps but nope
    4. WiFi speed through N is very slow ( 600Mbps consistently, on the same floor). I hope there are some settings that can be applied to improve the WiFi connection speed and please guide me on how to do so.


    • Your numbers look fine to me, Hakim. Your expectation is completely ridiculous. You need to understand how Wi-Fi works. More on testing here. Make sure you READ (with a bit of attention) the entire post and related ones. Also make sure you READ this review, too.

      • Hi Dong,
        I bought an Asus xd4.
        I use it as an AP and I have a problem with the WAN port that connects at 100Mbs all the time instead of 1 Gbit (even when I have it connected directly to the TP-link Archer C6 router that I use – it has all 1Gbit ports).
        I use Backaul Ethernet connection (all units connected via LAN connector to Tp-Link SG105 switch). Connection speed via LAN with a switch at 1Gbit.
        I use Kat6 or 7 cables. Changing them doesn’t change anything (and neither does changing the port in Tp-link).

        I struggled all night with the settings in the Asus menu, but without success. Unfortunately, I have run out of ideas.

        Are you able to help me?

          • Hi Dong,
            thanks for your answer.

            The best MTU for my system is 1452. I have change it in my TP-link router.

            I have tried to change jumbo frame on my Asus. In all cases (enable and disable jumbo frame, before and after changing MTU on my Tp-link), it doesn’t change anything. Still 100 Mbs.

            After changes I have reboot Asus, too.
            Still the same problem.

          • I’d check the cable that goes into the WAN port. Use a CAT5e one included with the set. If that’s no go, toy need to contact Asus support.

  33. Dong,

    Following your site has gotten expensive. 🙂 What I mean is since making the discovery, I’ve replaced my Google WiFi system with the TP-Link Deco X60 system and then, most recently, pulled the trigger on the AX Mini (XD4) system when I discovered the creation of a guest network on the Deco X60 was extremely problematic (I gave up).

    Anyhow, regarding the AX Mini XD4 system…I have set it up and have connected the 2nd and 3rd node via ethernet backhaul in precisely the same spots as the previous systems’ 2nd and 3rd nodes resided. I found it curious that with the AX Mini XD4 system only one or two devices (out of ~32 wireless) were connecting to the nodes.

    I then selected the “Ethernet Backhaul Mode” from within the browser-based router setup menu and things are now more logical (there is a somewhat even distribution of wireless devices across the three pieces of Asus hardware- router and two nodes).

    A couple of questions for you:

    1) Is selecting the “Ethernet Backhaul Mode” necessary to accomplish proper AiMesh behavior with this Asus system in an ethernet backhaul setup? The Asus directions around this are rather vague. It seems I’ve done the right thing but not sure if this was even required?

    2) With this Asus system, how have you found it with respect to logically (by proximity) assigning device connections to the closest node? I ask as in the current state there are a number of my devices connected to a node which is ~25 feet away through several walls instead of to a node which is literally four feet away.

    Thanks for the thoughts,


    • That’s not expensive, Howie, that’s money well-spent. 🙂

      1. Generally that’s automatic. But you can choose the mode to make sure.
      2. Wi-Fi signals within a certain distance don’t follow human logic in terms of range. That said, 10 feet or 25 feet are likely the same for devices. More here. This depends on what you have in the room. Again, don’t use the what-I-see-is-supposedly-what-I-get approach. You can’t even see “Wi-Fi” to begin with. In other words, don’t worry about it.

      • Your tip/direction concerning the Roaming Assistant setting was GREAT. I’ve played around with it on the 5GHz band and it has made a significant difference. Devices are, for the most part, aligned with the closest node and there is a discernable speed difference in many cases (although the extra speed probably isn’t necessary…it’s still nice to see).



    • Hi im considering between the mini xd4 and the zenwifi AC3000. AC3000 is using 2 routers and mini xd4 is a router and a satellite right? So is 2 routers better than the mesh? Im stay in a 2 storet flat.

  34. Hi Dong,
    I’ve been reading your reviews nonstop for days trying to figure what to do with my network. I have an asus rt87u for the past 7 years which, despite its black sheep reputation, has served us very well in our large home. It’s still working well, but showing some signs of its age with 5g disconnects as well as weak/dead spots on the edge of its range. I had been holding out for wifi 6e, but decided I needed to upgrade sooner rather than later. I was debating between various setups you had recommended, but settled on the xt8, xD4 (with or without an x86u as main router), or a pair of x92u. I finally pulled the trigger on the xd4 setup after I got a 15% discount at BB for turning in an ancient router I still had laying around for some reason. I was very tempted to get a pair of x92u for a better upgrade path as nodes in the future, but the price of the xD4 was too good to not at least try.

    I should have made the switch long ago! I had recently traced all the old wifi hard wired cat5 connections that the previous owners of our home had left behind with a tracer, and was able to easily setup the xd4 system with a wired backhaul. It’s still early but it has been very smooth with the fastest speeds and stability I’ve had with any of my devices. I had thought to add an x86u or ax11000 in the future with the xD4s as nodes for more features, but for now I don’t think it is necessary until our bandwidth requirements increase. Thank you so much for the recommendation!

      • Hey Dong, can you help?
        Recent put in Asus ZenWifi with one node. Worked well for about a week, now the node just cycles colors (flashing green to solid blue, to flashing blue, to a very brief solid white, then back to flashing green). I have turned things on and off; I have reset both the node and the router back to factory settings; I have checked that the firmware is the latest version; I have hooked the node to the router via ethernet (which fixed the problem, it went solid white, but as soon as I unhooked the ethernet cable, back to cycling). Any idea what to do now?



        • Not sure which one you’re talking about the XT8 or the XD4. If the former (it seems likely), try swapping the roles of the two hardware units.

    • Beautiful to hear, Reesh. I switched to an XD4 setup as well from Nest Wifi and being able to provide wired backhaul is truly breathtaking.

  35. Thanks for quick reply. This is so true. It just bugged me to see dips in numbers and I worried if I should have purchased a couple of standalone air mesh routers in the middle or higher tier, since the only difference was the new devices.

    I would be mostly trying to get the best performance of wifi -5. I may own 2 devices at best capable of 6.

    I’ll read up on your links and try to avoid a question you may have explained.

    Have a great day!

  36. Hi Dong,

    Have you ever used the CD6 version? I only have 60 down service ( classed as super fast in UK) and current supplied router struggle to give give much more than 15 on 2.4ghz and 40 on 5ghz so have been considering Asus cd6, tp link deco M4/5 or amplifi instant to be able to get 5ghz over most of house, don’t think there is a need to spend much more on faster system. Simple requirement really, just want easy to use, stable and reliable but can’t find much info on cd6 system. Any info would be appreciated. Thanks.

  37. Mr. Ngo,

    Thanks a ton for writing this review. Had my eyes set on a set of XT8s but really wanted a system that came in at least a 3-pack without murking the wallet. Then I remembered that I canceled my landline subscription a long time ago and had RJ11’s around the house.

    A few quick RJ45 conversions and a switch made this set look like an amazing value. Grabbed two more sets for the family too 🙂


      • Of course Mr. Ngo!

        I got around to installing an XD4 setup for a relative’s place and found out that it wasn’t wired for ethernet at all. So I resorted to using them with wireless backhaul and thought if Nest Wifi with its only two channels can wirelessly backhaul just fine, these XD4s should be able to as well.

        Turns out that wasn’t the case for some odd reason. Relatives reported multiple instances of dropped connections while video conferencing and casual YouTube streaming and I have a feeling this is due to the wireless backhaul.

        For now, I have restored back to the previous setup but I am thinking that a single router may be a better option for this 2-story house since there are not many walls in the way. I’m leaning toward the Asus RT-AX3000 just because I love the idea of wired backhaul even for the future. What are your thoughts?

  38. Hi Dong,
    fantastic review! thanks!
    quick one: you mentioned backhaul and the need of a switch because it doesn’t “daisy chain”…
    My question is: the Router Node supports also a “V” backhaul right i.e.
    -Router Node connected to switch input/output port (Router WAN port goes to modem)
    -Switch port 1 connected to Node 1
    -Switch port 2 connected to Node 2

    I would then have a switch in each Node location where the Node LAN connects to one of the inputs ports (and the other ports to 2 local wired devices)

    This is supported right?

    Many thanks

    • You just need one switch at the router’s location, Luis, but you can use as many switches between the router and the node(s) as you want. An unmanaged switch just adds more network ports to a network and nothing else. More here.

    • @Dong Ngo,
      many thanks for the quick reply!

      yes… I understand about the several switches… the problem is that some devices eg the Hue Hub needs to be connected via Ethernet (as does the “Homematic hub” etc, and they are currently near the nodes… (not the router)… and because the Asus only has one Ethernet port I would have to use it for the backhaul (shame they didn’t do 2 like the Asus ZenWifi Mini AC CD6…. -> that’s what I have now… but it is wifi5)


      PS: I will eagerly read your new article!!!

    • What a great review. My biggest question is the lack of two way IPS. as I look at my Asus router, the two way IPS reports lots of “inbound” traffic, but never any outbound traffic. Surely that just the job of the in-built firewall. So inbound IPS is an absolute must or the device is a no go. I get lots of inbound Exploit remote command execution reported. can you comment further please ? Also any ideas on the 2.4hgz performance ( aka distance) – as many devices like ring and outdoor pool/sprinkler controllers are 2.4ghz.

  39. Hi Dong, thanks for the review. However, am in a desperate need of an expert intervention such as, from yourself.

    I own the AC-87U (a very old workhorse) which has been acting rather wonky of late. Been able to pull up/down about 300~400mbps previously on a 1Gbps line but of now it dropped to 100~150mbps even with direct LAN cable (wired) connection.

    Decided, that it was time for 87U to retire and upgraded to the AX XT8 pair. To my horror, wirelessly same results (100~150mbps) but wired able to draw 800-950mbps. Did numerous reboots/resets/change of settings of both router and modem but still same results. What gives?

    The story does not end here. Frustrated, decided to return the XT8 and reconnected the 87U and to my surprise, out of the blue 87U started deawing 400~500mbps now – wirelessly?? Never before had I witnessed such numbers on my 87U. What is happening?

    ISP Service Engineer was at my home to test the connections directly from modem/wall. Signal/bandwidth was perfect almost touching 1Gbps. As soon as he connected the XT8 same problem prevailed. Wirelessly 150mbps and ping latency ranged between 20~48ms. Just to be certain, he hooked up his own Nokia router. It gave 400++ up/down with stable ping latency of 4~6ms wirelessly. He mentioned this was his 4th such case with XT8 router. Any idea/info if XT8 run into such problems?

    Just to be sure, I borrowed my friend’s Deco M9 Plus up/down a steady 400-600mbps and ping 4~6ms.

    Now the dilemma. 87U can’t get a signal in the farthest room and it going bonkers again just scares me. XT8 just refused to go above 150mbps wirelessly no matter what I did. Nokia and Deco M9 Plus proved to be stable with acceptable speeds but of course, lays the privacy issue.

    I am leaning 50/50 towards the mini XD4. But before I plunge and buy one of these cool looking giant ice-cubes need your expert opinion with regards to the above likely cause/solution to the above problems. Tks in advance and apology, for such a long essay.

    • If you have wired backhaul, the XD4 is a better fit. The reason you see the numbers like those is because Wi-Fi 6 is not necessarily better for Wi-Fi 5 devices. You will first need to update your Wi-Fi 5 client to the latest driver, and even then, they might still work better with a Wi-Fi 5 router. More here.

      • Hi Dong,

        Thanks for the advice. Just an update, I got the XD4 (3-pack) unit. It has good coverage in my home and is able to sustain speeds of anywhere between 440mbps~630mbps on my 1Gbps line – wirelessly. However, I do have a gripe. Unlike the main SSID the Guest Network unfortunately, is still unable to broadcast signal over to rest of the 2 nodes despite, selecting “All” under “Sync to Aimesh node” setting. I have tried on several different devices both with and without WiFi 6. As I move closer to the nodes, moving farther away from the main router the WiFi signal just slowly disappears and latches itself to my mobile network instead. Do take note, no such issues with the main SSID which connects seamlessly, from router to node.

        I understand those on Lyra have the same option “Sync to Aimesh node” and are also unable to get it to work on Guest Network. To some, Asus has replied that Guest only broadcasts from the main router node.

        I called Asus myself to verify and the representative unfortunately, wasn’t aware of such an option. After checking with her colleague she finally confirmed that such an option existed in their Web UI however, she gave me the same advice. The Guest option was only dedicated to broadcast signal from the main router node only. I then questioned, why put such an option in the Web UI in the first place? To which, I was told to send a screenshot to them via email and that they will forward my question to the head office. I have been contacted twice via email to explain the sequence to this problem but to date, no real advice on how to solve this issue.

        Coming back to your article, did your Guest Network worked seamlessly like the main SSID handing over broadcast signal from router to node? Any specific settings? Am just baffled.

        Am using wireless backhaul for my nodes.

        • The Guest network worked as intended in my tests, as I noted in the review. Things might have changed with new firmware and it’s odd if that’s the case though not unprecedented with Asus. The next firmqware release might fix it.

        • @Dong Ngo,

          Hi Dong,

          Just an update. Asus got back to me and suggested that I upgrade the firmware to their latest Beta version. So I did. Guest and everything else is working perfectly fine now – seamless, is truly the word.

          Also, thought I share this with you and your readers. My Asus Zenwifi AX Mini (3-pack) actually comes with 3 routers instead, of 1 router and 2 nodes. All 3 have a single WAN and a single LAN port. All 3 units are labeled as XD4R.

          • Thanks for the update! I know it was something to do with the firmware. And your hard hardware units are interesting. You got all three routers!!! I guess they have been struggling with the demand. Glad it worked out. 🙂

          • Hey Speed,

            Do you have the reference for the 3 router package? I would love to get one with 3 routers instead of 1 router and 2 nodes.

            I guess it must be a different reference? If you have any tip on this will be great

  40. Would adding the 160 MHz channel width to this unit be a software update or hardware change? It already includes the 5GHz radio so hoping Asus could just release a software update.

  41. Hey Dong,

    Big fan of your reviews. It has helped guide me to wire my new house and pick up a RT-AX86U and the AX mini set.

    Currently have gigabit internet with Comcast

    I currently have a gigabit modem > RT-AX86U > netgear gigabit switch > ax minis wired through the house.

    I have updated all firmware and system was stable for about a week with WiFi speeds around 600mbps (still not as high as expected)

    Now i am getting around 100mbps throughout the house. I have reset with no change.

    And ideas? Pretty new to this and your threads have helped a lot. And advice would be appreciated!

    • Check to make sure your switch (or cables) is not working at 10/100Mbps (and not Gigabit) somehow, Dillon. You can test that by connecting a computer to the backhaul cable.

      • Thanks for the quick reply! Happy Thanksgiving. Sure enough, 3 of my ports are showing 10/100 MBPS.

        I have double checked all cables are the same as ones running gigabit. Any idea on how to fix?

        Thanks again!

  42. Thanks again for your advices and tests, i received and install Asus Zenwifi XD4, all 3 configured as satellite with my AX86U.
    I’m very happy with performance and size / look.
    I just have an issue with my wife’s smartphone that often switch from my main router (in 5Ghz) to a satellite (in 2.4Ghz) because she’s between both, and it cause micro interruptions, it’s fatal in VoWifi calls … i’m trying to resolve this

  43. Hello again
    I’ve a connection question to be 100% sure with mu AX86U + 3 XD4
    Should i connect :
    – AX86U => Cable => DLINK Switch and then my 3 XD4, router and nodes ?
    – Or AX86U => Cable => XD4R => Cable => Switch => Others XD4N ?
    I have a cable going from 1st floor to 2nd floor, a switch being the concentrator for the 2nd floor … i’d avoid to setup the XD4R as the concentrator 😉

    • Assuming you mean the network cable by “Cable”, either will do. Generally here’s the diagram with each -> represents a network cable:

      modem (or any Internet source) -> (WAN port) RT-AX86U (LAN port) -> (Switch)-> (more switches) -> Wired device.

      You can imagine the LAN ports on any router are part of its built-in switch and you can use many switches within an AiMesh system. I think you should check out this post first to have a good understanding of what you’re doing. Good luck!

      • Thanks for your answer it’s perfect. Yes cables were network cable 😁
        Regarding installation i must setup the 3 xd4 together before joining the ai mesh with my ax86u or do I only have to start by adding individually my 3 xd4 as nodes to ax86u?
        Xd4 are just starting to be available in Europe / France 😁😁

  44. Here’s something I tried which works really well: I have a triple NAT setup reduce risk against insecure IoT devices. I found AiMesh excellent to create multiple segmented mesh networks. I use a pair of ZenWifi AX XT8 both in router mode to create 2 separate LANs. I split up 3 ZenWifi AX Mini XD4 and use them as the satellite nodes for the XT8 routers. I have wired backhaul. It’s win-win. I get the benefit of the XT8’s better features like AiProtection and Adaptive QoS. The XD4 satellites are cheaper ($300/3) than buying XT8 satellites ($450/2). With wired backhaul, the XD4 performance as a wired satellite is similar or slightly better than XT8 most of the time. One downside, is with mixed hardware, wifi guest network will not broadcast from the satellite nodes, only from the router (ASUS is testing AiMesh 2.0 beta firmware that fixes this, so hopefully a stable release update is not too far away).

    • That works, Smack, for Internet access, but if you have local services (like network printing, backup, etc.) they will likely not work as expected. More here.

  45. seriously excellent write ups. I was originally looking at tp-link openmesh and deco mesh units until I but found out they cannot be mixed and matched in the same mesh as I had wanted… Can anyone tell me if I can mix-and match these zenwifi minis and a zen wifi CT8 together? Or if I can add an Asus AImesh router to a zenwifi set and have it act like a real node as opposed to a seprate access point? Or am I just asking for trouble…

  46. We bought the ZenWiFi AX Mini set largely based on your excellent reviews of the various ASUS AiMesh options and these AX Mini’s are now providing excellent coverage using wired backhaul – we have 200 Mbps internet service and we’re getting 180-200 Mbps WiFi throughout all three levels of our home and better-than-ever connections to all of our outdoor Ring cameras. Thank you for helping us find the right solution for our home!

    The only odd thing I’ve noticed is that when either (or both) of the satellite units are turned on, there a guest WiFi network appears called “ASUS_B0_2G_Guest” even though I do NOT have Guest WiFi enabled. It’s a locked SSID, but I can’t find the password in the web GUI, mobile app, or online ASUS help files – and I can’t figure out how to turn it OFF. I worry when an unknown WiFi network shows up in my house that I can’t control! Any suggestions?

    • That’s odd, Jeff. You can try turning on the Guest Wi-Fi, picking a name for that, making it available throughout the system, then turning it off, and see what happens.

      • I tried turning Guest Wi-Fi on/off several times using the Web GUI and also the iPhone app, but this mystery “ASUS_B0_2G_Guest” network is still visible. I suspect it might have something to do with originally setting up the three units using the iPhone app rather than the Web GUI. I’d prefer not to reset everything to factory defaults and start over using just the Web GUI, but maybe that’s my only option at this point.

        • I don’t know if this was part of the solution, but I deleted the iPhone app and did a system reboot from the Web GUI: no more unwanted Guest Wi-Fi network!

      • Final solution: everything working perfectly now after “system reset to factory defaults” and setting up the three units using the Web GUI this time instead of the iPhone Asus app. I definitely recommend NOT using the mobile app to setup these routers!

  47. If I have wired backhaul and only use it in ap mode with mesh, would the ZenWifi ax mini be preferred to the ZenWifi ac ct8? Thanks!

    • The ZenWiFi AX Mini would make more sense and its node will have the speeds as fast as the router unit in my charts, JH. “Better” is a broad term.

      • Sounds like this mini system is a fantastic choice. I am looking to jump on the mesh bandwagon (currently using frontier base rental router by itself). ~4000 sqft 3 story home. I have a wired house so plan on using a wired backhaul. Even with that, I feel like I’d be better off with the XT8 over the XT4 due to the extra QOL stuff, and the power. The only downside is only 2 nodes instead of three. Price aside, is the xt8>xt4?

        • I think you’d be better off getting a nice dual-band router, like the RT-AX86U, and then a couple of XD4 satellite units (or the whole set) and use them as nodes, Ben. Don’t get any tri-band system.

          • Thank you for the input, I think the rt-ax86U is perfect! 3 quick follow ups:

            1) can I just use a small gig-switch at the locations of the xt4 nodes to keep the hardwired option available for devices, since the nodes only have 1 Ethernet input?

            2) NAS is also new to me, do you know if my multiple Xbox’s can use one eHDD plugged into the router as a shared drive?

  48. Dong, came across your site recently and I’m blown away with the reviews and details THANKS! Question for you regarding setting up a wired backhaul with this Asus AX Mini setup. Currently I have network cables running from my ASUS Blue Cave to 3 separate locations with an ASUS GX-D1051 switch that then splits for an OLD RT-N66U and a Work provided Cisco router. Probably should have thought ahead and run more cables. Plan would be I’d run an initial networking switch off the router since the XD4 is limited with one single port. LAN A (*Home Office) would feed to a separate switch(Old ASUS D1051 Switch or another Suggestion?), which will then feed to Satellite XD4N and the work router. LAN B would feed to the AC2600 and I ports would be for Gaming/Media. LAN C would just act as a satellite for the mesh network Coverage.

    With that, do you have any recommended switch brands or tips? Anything to avoid?

  49. I intend on using all units as APs only. Do you know if they carry VLAN tags? The tags would be set at the router/switch.

  50. Hi Dong,
    Nice review. I had to replace my 7 year old ASUS RT-AC68U recently due to it seeming to becoming unstable after years of rock-solid performance. I’d also loaded the alternative firmware, Asuswrt-Merlin a couple years back and that worked out very well. So when this one started to die, and a wife and daughter home working and heavily dependent on internet access, I needed to find something ASAP and ended up at a Big Box store looking at the only Asus product on their shelf, this AX Mini system. That’s when I read your review and bought it. Thanks! No regrets (except for no Asuswrt-Merlin for it).

    Anyway my question is how can I set my own DNS preferences? It seems I can set a primary, but the secondary is always the router’s internal IP and I have no idea how that works. Am I stuck with that? Can’t find much else on the net about this system so I thought I’d ask you.


      • Aha. I had “Connect DNS Server automatically” set to “Yes” and therefore didn’t have those options.
        Thanks again, Dong.

      • Meh, not to beat a dead horse but I don’t think that’s it. Not looking here for a solution, Dong. I’m sure you’re busy. But just for the sake of completion.
        There’s another DNS setting under LAN > DHCP Server tab > DNS and WINS Server settings. This is the only one I can change and see it reflected on my Windows 7 PC (after rebooting the router, after ipconfig /release, ipconfig /renew).
        So that’s where I saw only one DNS field. What shows up on my PC is the one I choose and the router’s internal IP address. Doesn’t appear to be away around using the router as a DNS server too?
        (And fwiw, running nslookup under Network Tools shows it using my own DNS choice).

        • It depends on what you want, Chuck. The previous one is the DNS for your Internet connection. The other (LAN one) is for each device within the network to use. It’s great when you need to make ALL devices in your network to automatically use a specific local DNS server, such as the case when you have a domain controller More on that here.

  51. Once again excellent review
    I’m interested in the Asus X4D but disappointed on the router side (parental control, IPS protection, Qos …) … so i’m wondering how a couple Asus AX-82U or 86U with these X4D could be a good solution. I imagin
    – I read that we loose the unique guest wifi 🙁 … but can we activate it on each node individually … a need a kind of guest wifi everywhere, not only on the router, even if it would be separated guest wifi
    – With a ‘real’ router, will i benefit of all parental control, IPS … on my WHOLE system ?
    – Can i use the 3 units from the X4D kit as satellite with the 82U / 86U or only 2 ? (2 would be RJ45 connected an one with wifi) … having a main ‘real’ router with 3 additional satellite could profite the best wifi coverage at home !

    Last question regarding only XD4 kit, on only see the 3 units kit, nowhere i can buy only a XDN unit … did i missed something ?

    Thanks for your help, since i discovered you site i’m fan of your articles 😉

      • Thanks for your answer, while i’m not interested in the RT-AX92U router, i just read your article and didn’t found answers to my questions, can your help please ?
        Especially on the configuration AX86/82U with XD4 nodes …

      • Hi Dong, i’m not sure what your last reply ‘Sure David’ means … can you confirm that with a AX86/82U as main router with an XD4 mesh system i’ll be able to have parental control, IPS and all features from the main router also applicable to XD4 nodes ?
        I understood there’s issue regarding guest wifi

          • I read it thanks a lot for your help … i have now to decide between an AX86U + XD4 (still not available) or 3 XT8 but i’m very afraid of its stability

        • Hi David,
          Just chiming in here. I have both the XT8 and XD4. I’m using the tow XT8’s as my router (more functionality), one as a mesh node and the XD4 as nodes. My house is only 2400sq ft but I have original plaster walls, which degrades a WiFi signal. I don’t have any stability issues at all and it took a days to really settle in but it works great. And the Of course the cost of having both is ridiculous but I didn’t have too many choices unless I used the AX86 but I didn’t want that.

          • Hi thanks for your reply. So you choose 1 XT8 + 3 XD4 right ?
            I’m not able to find XD4 in Europe, and why did you choose 1 XT8 vs AX86 ? For a better looking ?

          • I thought that mixing 2-bands and 3-bands system was not the best in an AIMesh installation and i don’t know what’s the max recommended number of satellites
            I wanted to buy XT8 but saw the bad experiences of many users i’m thinking about the X86 router + XD4 (but available nowhere in Europe)

  52. Hi, can I connect a XD4R wired from AC88U Router and 2 wireless XD4N successfully using airmesh? I currently have poor coverage using the a RT-AC88U and an linksys used as a wired AP. The linksys is dying. And I I’m trying to figure out what to do next. My AC88U has to be in one corner of my house with the modem. I do have ethernet wiring to the center of the house and the linksys. I have no wifi 6 clients, probably 15 wifi 6 and several IOT. I don’t need parental controls, aggregate WAN. Reasonable solution or what would you suggest?

  53. Hi,
    I was contemplating buying the XD4 along with an AX58U for my house. It would be using a wired backhaul. Which router do you think I should use as my main? The XD4 or the AX58U?

    Thank you!

  54. I am currently using an XD4 Mini in a three-floor, 3000 square-ft home using wired Gigabit Ethernet and unmanaged Gigabit switches with approximately 25 Wi-Fi 5 and 10 wired ethernet clients. After setting up and tweaking several important XD4 settings, my system has been completely stable with no client or remote node disconnects. With Verizon FIOS 400/400 Mbps internet service, I am now consistently getting 300 – 380 Mbps download speeds throughout my entire home. Overall, I am extremely happy with the XD4 system and believe that it offers excellent value ($300), stability, speed, and range for persons who have wired ethernet in their homes. Highly recommended!

    After initially setting up the three nodes wirelessly (creating separate 2.4 and 5 GHz SSIDs) and upgrading to the latest firmware (using the Asus Router App), I factory restored all three nodes using the reset button and then setup again using the Asus web interface. I then moved the two remote XD4N nodes and connected up using Ethernet. Initially, I was seeing random disconnects of the remote nodes and some clients. In order to eliminate disconnects, I changed two important XD4 settings using the Asus web interface. First, in Wireless, Band = 5GHZ, I set Control Channel from Auto to 157. There appears to be a bug in the XD4 firmware or hardware which is causing the nodes to switch to an unstable/noisy channel which reduces over stability and may be causing disconnects. Second, in AIMesh, highlight an individual XD4N remote node and then select Management and change Connection Priority from Auto to Ethernet or Wired. Follow this same procedure for the second XD4N remote node. This ensures that the two remote nodes stay connected to the XD4R node using wired backhaul and not wireless backhaul. Before this change, the remote nodes were randomly switching from wired to wireless backhaul and causing disconnects. Again, this appears to be another bug in the Asus firmware. With these two important changes, my system has been stable and working superbly for 7+ days!

  55. Try bypassing your switch by connecting an Ethernet cable from your XD4R LAN port directly to a computer. If that works, then you have a problem with your switch.

  56. Hi Dong,
    We just purchased the mini. Wireless is great but we are unable to get the hardwire to work. We are using a Netgear modem with has one port, so we send that to the mini and are using the Netgear ProSAFE that has five ports off the mini for the hardwired lines. We have not been able to get the hardwired lines to work. We also tried the ProSAFE connected to the modem and that did not work either. Any suggestions?

    • A couple things, Jeff.

      1. Make sure you use an *unmanaged* switch. If you have a managed switch, you’ll need to configure that switch first.
      2. Here’s the simple diagram for wired backhaul: Modem -> (WAN port) XD4R (LAN Port) -> (switch, or not) -> XD4N.
      3. When a switch is used, connect other wired devices to the switch.

      That should work.

  57. I posted but don’t see my comment, so sorry if this is a dual post. I initially purchased the XT8 but it didn’t give the coverage I needed. I have a decent size house but not overly large. The issue is I have old plaster walls. So I purchased the ZenWiFi AX Mini (XD4) in the hopes that with the extra node I could match or better my current Nest Wifi set up. So my quesiton Dong, what if I use the both XT8’s, one router, one node and then use two of the XD4’s as the nodes what would your thoughts on that be? I get good coverage now with three Nest routers (not nodes) but want more speed and better coverage.

    • My answer is below. Your post might need to be approved before it appears. Else, as you can imagine, you’ll see tons of spams.

  58. Hello Dong,

    thank you for your work, it’s great!

    I bought the ZenWiFi AX XT8 and although my house is by no means large, I have old plaster walls so I need more than just the two Router and node. So I purchased the ZenWiFi AX Mini (XD4) in hopes of having more coverage but sounds like that isn’t really the case. I still have the XT8, so should I use that as my Router, and node and then use the XD4 as my nodes? What are your thoughts on that? I would probably only need to use two of the XD4 as nodes. Currently I’m using NEST wifi however, I’m using all routers and no nodes. It’s doing a pretty decent job but need better coverage and speed.


  59. Your reviews are INCREDIBLE, and I have learned so much through your site the last two months.

    I just bought the tri-band version a week ago and was about to install it when I saw this review. I mainly care about dropping connections/roaming and extensive wireless coverage through the house because my floor plan is weird (no need for high speed use, just tons of devices).

    $150 less for a 3rd unit seems wonderful. One question: will a the lack of a wireless backhaul affect older iot devices or things like Sonos in anyway? It sounds like it will just reduce speeds by half if connected to a satellite, and if that’s the only difference, I’m game. Thank you again!

  60. I have this setup for almost a week now with the nodes wired backhaul to my switch. Getting router speeds as you mentioned at three locations. Briefly tried wireless and it was not good. It does what my single nighthawk r7000 didn’t do well for me. Better coverage and speed, but nothing beyond like a high end system. On the fence if I should keep them or risk it and try something else that could or couldn’t be better.

  61. Guest mode working at the nodes is welcome news. I hope my Lyra Trio will get it soon. $300 for 1 router and 2 nodes doesnt sound like a good deal. $300 should get 3 routers, at least I feel Im getting my money’s worth even I cant use it. 🙂

    • Hi Dong:

      I am using the ZenWiFi AX Mini as nodes with an ASUS RT-AX86U as my main router and AI Mesh hub. I noticed that when my iPhone and MacBook Pro connect through the Minis, speeds are much slower, especially for upload. I then connected the ZenWiFi AX Mini as a stand alone and got good download but my uploads are still very slow. I have a gigabit internet through FIOS and get download speeds near 1000 and upload speeds in the high 800s through the ASUS RT-AX86U wired. I keep the download speed with the Mini, but the upload caps at 50. I am not sure why. Any ideas? The upload issue appears to be both for wireless and when I hook my PC to the LAN port on the mini.

      • You need to use wired backhaul, Perry. It seems you’re using wireless backhaul right now and in that case, you need tri-band broadcasters.

        • I was going to update. I am using a 100% wired backhaul. However, I am going through multiple dlink switches. ASUS RT-AX86U connects to a dlink 24 port switch (DGS-1024A), which in turn branches to a dlink 8 port switch (DGS-2208). The 3 ZenWiFi Mini mesh nodes come off the 8 port switch. I found that the speeds improved when I had one of the nodes bypass the second switch. Unfortunately its not practical for the other two. Unfotunately I don’t have homerun wiring. Much of it is room to room within my brownstone.

        • Hello Dong. I love reading your reviews and advice. I hate to be the guy with a long story and lots of models but I am working from home and having some struggles. My wife also has lots of work to do and we hate losing connections.

          I just purchased the XD-4.

          On my last Router (R7000) before it started going crazy when I ran netgear speed app through phone i saw speeds of about 350Mbps DL, 42Mbps UL- 8ms ping. This was on 2.4.

          Speedtest results on old setup were- 329Mbps DL, 41.4 UL at the exact same time. This was on 2.4.

          When i run Asus App and do QOS speedtest – it says 933Mbps – DL, 43Mbps upload. 8ms ping. Is this the speed of the connection at router or my phone?

          When i run speedtest in ASUS at 2.4 GHz – I see about 50Mbps on wifi regardless of where i am. On 5G it is better and around 280Mbps.

          Is this the speed of the connection at router or my phone?

          Why is speedtest so low? Anything I need to do to set up differently or to optimize. I did double check that it is set for wired backhaul.

          This is only a day old but i do not want to regret it if i can just upgrade today. I FEELS faster on wifi than last Router but the numbers seem lower. Hopefully my ignorance.

          I used an iphone XS in both cases. I have each of the XD-4’s wired to a switch downstairs. I get great signal strength but am wondering why the speeds seem so slow.

          The reason i purchased XD-4:

          It started with a Leviton switch controlling itself. I blocked wi-fi, it stopped. Restored- returned for a bit. I changed passwords to everything. Since then

          My system consisted of Netgear R7000 and two EX-7000’s all harwired in three areas of the house.

          Motorola Gig Modem to Router. Router to Linksis LGS116P- 16- port Gig switch. The switch distributes (CAT6) to a 2 – Story, 3100 sf home. Connected to it directly (*in a closet upstairs ) is a Phillips Hue Hub. All other devices are in other rooms.

          Media Room has an old S8000 switch that has Apple TV and Denon Receiver, and PS4 connected to it.

          Downstairs EX-7000 had a laptop connected most times and my Arlo security.

          Second EX-7000 had a TV, sound-bar connected via hardwire.

          Each EX-7000 is hardwired to the switch upstairs.

          Other devices include about 25 Phillips Hue bulbs and6 Leviton Devices, a garage door, oven, 4 phones – XS and newer, and other normal stuff.

          What gives? I barely game and everything that streams is hardwired.

          What would you do?


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