Netgear CM1000 Cable Modem Review

Netgear CM1000 Cable Modem Review | Buyers Guide

We have tested quite a few routers recently, however, these components can not work properly until and unless you use them with a quality cable modem. Hence, any user who is looking to get a new router lately should also check out some new modems as there are a bunch of good options available in the market right now. That said, we came across the Netgear cable modem CM1000 that actually got our attention, not only by the features and pricing but also the looks are quite eye-catching. Hence, we will be doing a simple Netgear CM1000 review for you all so that you can have a small piece of knowledge about this box of tech whether it is suitable for an average consumer or not.

Not just by going through the specifications only, but we have personally tested the Netgear CM1000 cable modem and as per our speculations, the Netgear CM1000 Comcast performance is absolutely above average and you will not find it to be a bad deal at all. Apart from that, we have so much to talk about this Netgear nighthawk CM1000 cable modem. Hence, if you are interested in purchasing the CM 1000, make sure to read the article until the end to know whether it is a good choice to spend or not.

Netgear CM1000 Review


CM1000 Review
Channel Bonding 32×8 DOCSIS 3.1
Downstream Data Speed Up to 1Gbps
Upstream Data Speed 300 Mbps
Wired Speed 1Gbps
Compatibility Xfinity, Cox, Spectrum
IPv6 compatible Yes
Ports 1 Gigabit Ethernet port
Weight 380 grams


  1. The setup process is super-easy
  2. Latest DOCSIS 3.1 standard compatible
  3. 32×8 channel bonding offers a seamless and fast internet connection
  4. Compatible with Xfinity, Cox, Spectrum
  5. Wired Speeds up to 1000Mbps


  1. Only one Ethernet port is given
  2. No Telephone port is present
  3. DOCSIS 3.1 standard capabilities are not fully utilized by this modem

Check Latest Price


If you go in the market looking for the DOCSIS 3.1 cable modem options, you will barely find something like this we have got here for you. Although the pricing of this router might still not suit everyone, it seems quite apt when you look at the technologies implemented inside this router and how it actually performs in real life. However, it is not possible for everyone to test out a particular router or modem before buying it.

Therefore, we always try out to help you with this. Henceforth, in this Netgear CM1000 review, you will get to know about all the appealing factors about this Netgear CM1000 cable modem. We did find some minor flaws here and there as well while testing it out up to its root, so we will also be providing you with all that information too so that you can decide whether this cable modem suits well for your requirements or not.

1. Design

CM1000 Design

The first thing that anyone would notice in this Netgear CM1000 modem is surely its design. Unlike any old-school cable modems, it comes in a diamond-shaped design which gives it quite a unique look. Not only that, but the fact that it stands vertically upright makes it stand out of the crowd and gives it a more futuristic look. Due to this upright standing build, Netgear has been able to provide amazing convenience to the buyers as these kinds of tech hardware take a lot of space wherever you place them. However, that’s not the case here with this one.

Apart from that, the construction is all made out of plastic, and that’s the sole reason it weighs so less, just around 380 grams. But, even after carrying a powerful chipset inside, Netgear had a different approach for cooling it. Despite offering a cooling fan inside, the outer shell is crafted in a way that it has triangular orifices for air pass-through so that the Netgear CM1000 chipset does not experience any heating issues. It is actually a good idea when you have to do some cost-cutting, but this kind of design also gets dirty first. So, you will need to maintain it properly otherwise you might have to deal with dust later.

Although the modem is slightly bigger in size with dimensions ‘8.8 x 5.4 x 5.9 inches’ than its other siblings, still you won’t face any issues with the placement of it. Apart from that, coming towards the front-section, you will find various LED indicator lights for each function of the modem. And, at the backside, there is only one Ethernet Port on offer which is quite a bummer as most other brands do offer multiple ports at this price range.

2. DOCSIS 3.1

Apart from the Design and other aspects, if we judge this product by the technology it offers, it will get a little difficult for anyone to not like this Netgear Nighthawk CM1000 cable modem. As we have already mentioned above that it operates on the latest DOCSIS 3.1 standard, some readers might be wondering what it actually means and what are the benefits of it. Don’t worry, we are only here to explain to you all these features.

DOCSIS basically stands for Data Over Cable Service Interface Specification. So, with the increasing generations of DOCSIS standards, users are provided with great additions in the total bandwidth that users can have or use from their modems, or simply cable connections.

With the earlier standard, DOCSIS 3.0, the download speeds were limited to 1Gbps and upload rates were somewhere about 300Mbps only. However, as you are getting the benefit of using the latest DOCSIS 3.1 standard speeds on this Netgear CM1000 cable modem, the on-paper numbers are much more appealing. Very few modems support DOCSIS 3.1 standards. Other DOCSIS 3.1 modems that we have reviewed include Motorola MB8600 and Arris Surfboard SB8200.

Usually, the DOCSIS 3.1 standards can offer download rates up to 10Gbps, and also the upload rates are increased to 1Gbps. Apart from that, the availability of multiple channels such as 32 downstream channels and 8 upstream channels that we see on the spec sheet of this cable modem is also there because of the DOCSIS 3.1 standards.

Have you ever experienced the slowing down of the internet speeds? We assume a Yes because most ISPs do throttle down each channel to the minimum speeds to cope up with the network traffic at peak hours. Hence, with modems having only one downstream and one upstream channel (happens with DOCSIS 2.0 modems) do suffer a lot. However, with this cable modem here, there are no such issues since you get 32×8 channel bonding to always offer you amazing internet speeds throughout the day.

Recommended: DOCSIS 3.0 vs 3.1 | In-depth Comparison

3. Ultimate Speed

Netgear Cable Modem CM1000 Speed

With DOCSIS 3.1 working on its full potential, there is so much that you can expect from this modem. Not only is it future-proof as you are already getting the technology inside this modem which is not very common at the current moment. But, also the speeds that it offers are quite good enough for almost any task that an average consumer wishes to do.

The Data transfer speeds of this cable modem are mentioned to be 300Mbps for which you can easily find the best router for Netgear CM1000 in a very low-budget. Hence, the cost of the modem might seem less attractive, but the fact that you can get a router for a cheap rate brings down the overall pricing of the combination to a much affordable range.

On the other hand, wired speeds of this cable modem are the aspect that you will enjoy the most and it’s actually the best feature for which you will feel the pricing is well-justified. With an internet plan which offers Gigabit speeds, you can simply use this modem for almost any heavy task since 1000Mbps speed is just good enough even for 4K streaming or playing online games without any issues.

However, most people will still have this doubt (including us) as to why Netgear is not utilizing the full potential of the DOCSIS 3.1 standard as it can simply reach up to 10Gbps speeds. Maybe, they want to save it for the higher-specced products. However, the wired speed of 1000Mbps is neither too less for an average consumer.

Also Read: Best Router for 4K Streaming

4. Compatibility

While buying a new modem, it is fairly essential to check whether it is compatible with your ISP or not. Apart from the local internet service providers, big names like Cox, Xfinity, Spectrum offer connection via slightly different cables. These ISPs do not make use of the old ADSL or telephone lines. In fact, it is actually good, especially when you are looking for a speedy connection.

Hence, you will be glad to know that the Netgear CM1000 cable modem is compatible with mostly all the top-of-the-line ISPs such as Cox, Xfinity, Spectrum and you can use it without any other technical alterations. Apart from that, since all these ISPs offer amazing internet plans as well, you are free to choose between any plan which offers up to 1Gbps speed as the modem can easily handle it. However, if you opt for a plan that offers more than 1Gbps, the modem will start to bottleneck the performance.

5. Installation

Netgear CM100 Modem

The installation process is super simple and straightforward, and won’t even take more than five minutes to complete if you have even a little experience of doing it with any of your old modems.

You will simply have to connect all the wires first, as you get the power adapter in the box itself, connect it into the appropriate port. Other than that, connect the coaxial cable connection that your ISP has provided to you in the respective port. And, lastly, connect the modem to a laptop or desktop using an Ethernet cable.

Now, wait for a few minutes to let the modem come alive. As soon as you see the lights on the modem blinking, you can proceed with the activation process of the modem with your respective ISP. For the Netgear CM1000 Comcast users, it is done automatically!

After the activation, you can visit “” in a web browser when connected to the modem to access the web-interface of the modem. Here, you can play around with all the settings related to the connection and your modem itself.


Wrapping up this Netgear CM1000 review, we would like to conclude that the CM 1000 might not feel pleasing to all the customers out there because of the price tag. However, for any tech-enthusiast who loves to test out new technology, or someone who mainly requires a speedy wired connection, can simply look out for this Netgear CM1000 modem as it never fails to disappoint in terms of connection speeds. The overall performance of the modem is quite pleasing as it has got all the latest features one could ask for, but the fact that there is just one Ethernet port is a little saddening for this price-segment.

Leave a Reply

Your email address will not be published. Required fields are marked *