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Netgear CM2000 Nighthawk Review: A Reliable Multi-Gig Cable Modem

Earlier this month, I switched to the all-new Netgear CM2000 Nighthawk Multi-Gig Cable Modem from my trusting CM600. And it proved to be a bit of an anti-climactic experience.

No, this latest Netgear cable modem is not bad — far from it, if not the opposite. But if you have a Gigabit Internet (or slower), you won’t see any difference. That is unless you want to stay future-proof. And for that purpose, you will feel that the CM2000 is an excellent choice.

For everyone with a sub-Gigabit connection, though, the CM600 is still a much better buy, considering the CM2000’s current hefty price tag of close to $300.

Dong’s note: I tested the Netgear CM2000 with Comcast. While the modem works with almost all cable Internet providers, the experience expressed here is that of an Xfinity subscribe.

Netgear CM2000 Nighthawk Multi Gig Cable Modem Port
Netgear CM2000 Nighthawk Multi-Gig Cable Modem Port

Netgear Nighthawk Multi-Gig Cable Modem CM2000's Rating

8.2 out of 10
Netgear CM2000 Nighthawk Multi Gig Cable Modem Side
Features and Setup


Fast and reliable performance, up to 2.5Gbps of broadband speed

Supported by multiple cable providers

Relatively compact with clear status light

Comprehensive web interface



Single LAN port, no WAN Link Aggregation

Netgear CM2000 cable modem: A faster DOCSIS 3.1 version of the CM600

Like the CM600, the new CM2000 is a typical cable modem. It comes with a service connector and a single network port on the back.

This is a 2.5Gbps Multi-Gig port, and on the inside, the Netgear CM2000 features the latest DOCSIS 31. All that makes a big difference in specs: This modem can deliver up to 2.5Gbps broadband speeds.

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Like all DOCSIS 3.1 modems, the CM2000 can also work as a top-notch DOCSIS 3.0 device. So, if money is not an issue, you can use it in virtually any place a cable modem is used.

Netgear CM2000 Nighthawk Multi Gig Cable Modem Back
The Netgear CM2000 comes with a single LAN port and a service port on the back.

Netgear CM2000 cable modem: Hardware specifications

NameNetgear CM2000 Nighthawk
Multi-Gig Cable Modem
StandardDOCSIS 3.1
Top WAN speed2.5Gbps
Ports1x 2.5Gbps/1Gbps LAN, 1x Coax
Top Internet Speed2.5Gbps
WAN Link AggregationNo
ISP supportedComcast Xfinity, Time Warner Cable,
Charter, Cox, Cablevision, and others. 
Dimensions6.8 x 3.7 x 8.2 in
(172 x 94 x 208 mm)
Weight1.02lb (482g)
Netgear CM2000’s hardware specifications

While the modem can handle up to 2.5Gbps, keep in mind that you need a router with a Multi-Gig WAN port before thinking of having a super-fast Internet. After that, the high-speed plan needs to be available at your provider, and, most importantly, you can afford it.

Convenient web interface, standard setup process

The Netgear CM2000 comes with a local web interface that you can reach vis its default IP, An interface is a handy tool if you want to check on the status of your WAN connection. You won’t need to use it for the setup process, however.

Netgear CM2000 Cable Modem Web Interface
The Netgear CM2000 Cable Modem has a web interface that can come in handy.

To use the modem, you need to activate it with the Internet service provider. For that, you can follow this detailed post. But basically, connect it to your service line and then work with your provider, either via a web browser or a phone call, to have it added to your account.

I had no issue getting the Netgear CM2000 activated on my Xfinity plan at all. The whole process took me no more than 10 minutes.

Netgear CM2000 cable modem: Extra detail photos

Netgear CM2000 Nighthawk Multi Gig Cable Modem Box Content
Out of the box, the Netgear CM2000 Nighthawk includes a network cable and a standard power adapter which it shares with the CM600.

Netgear CM2000 Nighthawk Multi Gig Cable Modem Front
The Netgear CM2000 Nighthawk Multi-Gig Cable Modem comes with an up-standing design. It’s relatively compact.

Netgear CM2000 Nighthawk Multi Gig Cable Modem Underside
The underside of the Netgear CM2000 Nighthawk is where you can find its default information, including how to access its web user interface.

Netgear CM2000 Nighthawk Multi Gig Cable Modem Behind
The Netgear CM2000 Nighthawk Multi-Gig Cable Modem is all set up and ready to go.

Netgear CM2000 Nighthawk Multi Gig Cable Modem Lights
The Netgear CM2000 Nighthawk Multi-Gig Cable Modem comes with an array of status lights on its from, which come in handy when you need to set up or troubleshoot your WAN connection.

Netgear CM2000 cable modem: Excellent performance

There’s one important thing about upgrading a cable modem: You only do that when you pay for the speed that’s faster than what the current one can handle.

Well, that wasn’t my case. I tested the Netgear CM2000 with the same Xfinity plan of 600Mbps download and 15Mbps upload. And like the case of the CM600, the CM2000 delivered a slightly faster speed of around 700Mbps for download. So there was nothing new.

What was also the same is the reliability. Before publishing this review, I had used the new modem for more than two weeks. And during this time, I ran into no issue at all.

While two weeks weren’t really long for a modem, it was enough to note that the Netgear was reliable. You can count on it.

Clearly, due to my cable plan constraint, I couldn’t experience faster speeds with the modem — I wasn’t sure it could truly deliver 2.5Gbps broadband.

But it’s my personal take that if your provider has that option, there’s no reason why it can’t. I tested it out with a few Multi-Gig devices and was indeed able to connect to it at 2.5Gbps.


Unless you have broken the Gigabit barrier, there’s no need to get the Netgear CM2000 Nighthawk Multi-Gig Cable Modem. But if you’re thinking of upgrading your cable connection to Multi-Gig, it can be a sensible purchase right now.

One thing is for sure, no matter what cable broadband plan you have, this modem will work out. It’s just a matter of justifying the cost, which you might get back over time from not having to pay for the equipment rental fee.

But, still, in most cases, I’d also recommend checking out its old cousin, the CM600, which is excellent for a sub-Gigabit connection.

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10 thoughts on “Netgear CM2000 Nighthawk Review: A Reliable Multi-Gig Cable Modem”

  1. My local Costco right now has sale on Netgear CM1100 at $120. Is this a good price/choice? I have 300 mbps with Comcast and need to get new modem and router.

  2. I have a Netgear CM1200 for my 1 Gbps cable modem service (Shentel) and I’m pleased with its performance. It also supports up to 2.5Gbps, so I’m curious to know what the CM2000 offers to justify the $70 difference in price.

    • Your modem can do 1Gbps at most unless you have WAN Link Aggregation which will make it 2Gbps, Ron. WAN LA is messy. But for your internet speed, it’s already overkill.


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