NETGEAR Cable Modem CM1000-1AZNAS Review

Domestic modems are getting faster, they have more features and technical features that a few years ago were only available to high-end professional models. An example of this trend we can see it in the NETGEAR Cable Modem CM1000 Review which is aa state-of-the-art model that is committed to include three wireless bands to handle all kinds of intensive applications such as 4K video. 

The product is definitely a good machine for the tasks that we needed it to achieve. The speed is reliable and normally you don’t have big surprises. The setup is easy and doesn’t require to be a tech nerd to get the machine working. Even tough the price is a little steep, we have concluded that the device can be considered good value.

NETGEAR Cable Modem CM1000 - Compatible with all Cable Providers including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 1 Gigabit |...
  • COMPATIBLE WITH ALL MAJOR CABLE INTERNET PROVIDERS: Including certification by Xfinity by Comcast, COX, and Spectrum....
  • SAVE MONTHLY RENTAL FEES: Model CM1000 replaces your cable modem saving you up to $168/yr in equipment rental fees.
  • BUILT FOR ULTIMATE SPEED: Best for cable provider plans up to 1 Gigabit speed.
The Good
  • Ample compatibility
  • Easy to setup and No Monthly Fee
  • 4k for reliable streaming
  • Great speed
Not So Good
  • Cable bundled voice services are not compatible

NETGEAR  CM1000 Unboxing

What Is In The Box?

  • Quick start guide
  • DOCSIS 3.1  CM1000 Cable Modem
  • Power adapter
  • Ethernet cable

NETGEAR Cable Modem CM1000 Detailed Specifications

  • Weight: 0.84 pounds
  • Dimensions: 8.8 in. x  5.4 in.  x 5.9 in.
  • Ports and Wan: One (1) WAN coaxial cable connection, One port LAN Gigabit Ethernet
  • Upload and download Speeds: Up to 1 Gbps aprox.
  • One auto-sensing technology Gigabit Ethernet port

Features Of The NETGEAR CM1000

  • DOCSIS 3.1 connection: 2 OFDM upstream and 2 OFDM downstream channels
  • Backward compatible with DOCSIS 3.0 networks
  • DOCSIS 3.0 connection: 8 upstream channels plus 32 downstream
  • Warranty: 1 year limited

Performance Of The Cable Modem

If you think that the cable modem can reach a speed that is up to 1 Gbps, even on peak hours for uploads and downloads, it is difficult to question the great performance that the machine displays when compared to its competitors. Also the upstream and downstream OFMD channels (2 each) that are used for the DOCSIS 3.1 connection are part of the highlights that we have discovered when we tested the NETGEAR CM100. When talking about the DOCSIS 3.0 , the system shows the outstanding figures of 8 upstream and the not negligible amount of 32 downstream channels.

To complement the device’s performance information we think that most of the users will be very happy with the 300 Mb per second that the modem reaches for the data transfer.

Streaming And Gaming

It is quite obvious that when you look for this kind of machines is because you need high speeds for the activities that you like to enjoy when using the net. Streaming movies is one of the things that people wants to enjoy without the annoying buffering when watching them. The CM100 from NETGEAR have proven to be an excellent device when watching movies online, and without a doubt is one the choices that we would consider when looking for a fast cable modem.

Gaming is other activity that can be performed properly when using this machine, and lagging is not an issue that you should be worried about.

Netgear CM1000 Setup

NETGEAR Cable Modem CM1000-1AZNAS Compatibility

The router is compatible with a massive list of internet providers, so we think that is better to provide the information about which are the providers that cannot be used with the machine.

These providers are: AT&T, Verizon, CenturyLink, DirecTV, DSL providers, DirecTV, and DISH.

It is also important to take into account that bundled voice service are not supported, so in case that you like to access that kind of services, you need to look for alternatives that are more situated to your personal preferences. At the moment of the CM1000 review, these are the only compatibility issues that we have found, and if you get the subscription to the services that are supported by the device you won’t have any problem with the performance of it.

Cable Modem Rental FEE Savings

Some people don’t know that when they get an internet service from a provider many times they pay a fee for the rent of the modem. The great thing about purchasing a machine like the NETGEAR CM1000 is that you can avoid those fees, and even in some cases you can amortize the investment that you made when buying them. This of course depends, on the price that you pay for the service, and the value of the modem that you intend to buy. In short to optimize the decision that you make, you have to analyze the trade off that each alternative presents, and then go with the option that is the best value for your individual situation.

Buyers Opinions

Verified Amazon’s buyers look really pleased with the CM1000, and the most frequent opinion that we have seen is that the device perform way better than many alternatives. Highlight are the speed and reliability that the modem shows, and the simple setup is a plus for many buyers . We have seen many reviews from Comcast’clients, and most of them look happy, not only due to the rental fee savings, but because they think that the modem is much faster that the modem provided by the company. Also they say that the list of urls for activation that come with the manual provides great help in case that people have problems with the installation. The  DOCSIS 3.1, for many people was the reason why they purchase the machine and we think  that all in all they got what they wanted.

Video-NETGEAR Cable Modem CM1000 Speed Test

What Are The NETGEAR  DOCSIS® 3.1 Specifications?

The DOCSIS 3.1 specifications are the references that the cable industry follows to provide internet access of premium quality using HFC (Hybrid Fiber Coaxial) networks.

Thanks to it, the downloads speeds of the internet connections will improve to levels in which in the near future the data will be transferred as fast as 10 gigabits per second, making possible for the users to perform the most varied of the activities, like gaming,  4K movie watching, and even video conferencing with a level of quality that has never been seen before.

With the advent of the DOCSIS 3.1, 90% of the American homes get internet connections with speeds of several gigabit per second, and beyond that the improvement in the quality of the Hybrid Fiber Coax networks has diminished the latency to unprecedented levels. Ultra high definition is possible, no matter how many machines are using the network and the real time experiences are part of the daily life of the American people.

DOCSIS standard is responsible for the future enhancement of the quality of the internet connections that the providers offer to the demanding users of the new technologies.

Router Compatibility

The great thing about the NETGEAR Cable Modem CM1000-1AZNAS is that router compatibility issues doesn’t exist, and if you want to keep your favorite router there are no problems at al,l because you can use this model with any router. For instant the new buyer of the modem likes a router from another brand like for example Linksys or TP Link, when this happen there are no issues and the only thing that you need to do is to interconnect the devices and you are ready to go.

NETGEAR CM1000 Warranty And Manual

NETGEAR has normally a 1 year limited warranty for the hardware of its product, and this machine is not the exception. The support that their team gives is reliable and most of the times effective. We would say that for a company of the level of Netgear, the help that is provided when meeting some issues is excellent.

The user manual is also clear and complete, giving the information that is required by the interested in learn about the product. The Manual can be found here.


I think that the NETGEAR Cable Modem CM1000-1AZNAS Review has shown us that the product is a good value item, and if you think about the quality that you are getting when buying it, you can justify the spending that you made when purchasing it. If you need great speed you wont’ be disappointed, just get a good pairing router, and you will be ready for 4K streaming, gaming, videoconferencing, or any experience that needs high speed connection.