Netgear Cable Modem - Black (CM1000-100NAS): Gigabit Ethernet, Cox, Spectrum, Xfinity Compatible
$199.99
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4.7 out of 5 stars with 1506 reviews
quality: 3.67 out of 5
value: 3.22 out of 5
71% would recommend
14 recommendations
5 out of 5 stars
8 June, 2026
originally posted on netgear.com
Works as advertised
Replaced old modem, went from 700Mbps to 1.4 Gbps, easy setup, couldn't be happier with purchase
5 out of 5 stars
5 June, 2026
originally posted on netgear.com
Giga good
Recently had a lightning storm that cooked my router (not Netgear). I’ve used Netgear switches in the past and have never had problems with them so I decided to try a Netgear modem. It was easy to setup and has been handling everything the network been able to deliver. Lately we’ve been seeing 940 MBs pretty steadily. Haven’t had to do a re-set other than once when a firmware update was applied. Simply put- it does its job quietly and efficiently in the background like it was designed to do. I was surprised at how cool the unit runs. The previous cable modem ran pretty hot. I’m pleased.
5 out of 5 stars
4 June, 2026
originally posted on netgear.com
Perfect find
Great speed, works well with router and streaming and gaming experience is even better. Good price point too.
5 out of 5 stars
31 May, 2026
originally posted on netgear.com
THRILLED with SPEED with NetgearCM1000 vs the older CM500
I replaced my Netgear CM 500 with the Netgear CM 1000 as the 500 was very updated and could no longer get further updates. without changing my Wi-Fi at all, I went from 50 megs to 200! Everything runs smoothly… I’m thrilled (I was not thrilled with how difficult Xfinity made this to activate!)
5 out of 5 stars
28 May, 2026
originally posted on netgear.com
Seamless Set up Just time with Comcast.
connected seamlessly. Only challenge on the Comcast side for connecting. Took comcast about 45 minutes to complete things on their side.
1 out of 5 stars
24 May, 2026
originally posted on netgear.com
Think about it before you upgrade. I do not recommend it.
I still have not managed to get connected and working. And calling the whole number is worthless.
5 out of 5 stars
17 May, 2026
originally posted on netgear.com
CM3000 Cable Modem
Excellent Speed and reliability on this top of class modem.
5 out of 5 stars
11 May, 2026
originally posted on netgear.com
Fast Cable Modem
Easy set up and ability to bridge to mesh wifi system to provide fast reliable internet
5 out of 5 stars
10 May, 2026
originally posted on netgear.com
So far so good
Once I scanned bar code into Xfinity I was good to go.
5 out of 5 stars
6 May, 2026
originally posted on netgear.com
Solid performance at a reseasonable price
I recently replaced our old Netgear CM700 Docsis 3.0 cable modem with a modern Netgear CM1000 Docsis 3.1 model. There was nothing wrong with our old modem, it still worked perfectly, however since the data rate from our ISP has increased, we wanted to take advantage of the higher speeds and modernize at the same time. I've run multiple speed checks since installing the new modem, and it is consistantly 300 mb per second faster than the previous model. Just as with the previous Netgear modem, the new one delivers solid, consistent performance at a reasonable cost.
5 out of 5 stars
5 May, 2026
originally posted on netgear.com
New net gear
Happy about this purchase installation was quick and easy pretty small so not super noticeable in the corner
5 out of 5 stars
4 May, 2026
originally posted on netgear.com
NEW
just had it for 2 weeks and so far it is excellent but only time will tell...
5 out of 5 stars
4 May, 2026
originally posted on netgear.com
Solved hi res audio streaming issue
The Netgear CM3000 modem solved a problem I had streaming 24 bit / 96 kHz hi res audio files where music would stop after a track or two and not advance to the next track. This problem was with the Netgear CM1200 which I bought in 2024. Not a bad router, Internet speed was decent, ~950 mpbs on my Xfinity 1100 speed plan and I could stream video files fine. But high res audio is different b/c the files are not cached. I figured the CM1200 was contributing to a data latency issue and packets were getting jumbled. The CM3000 was Xfinity recommended (which means they’ll push firmware updates to it) so I bought it. It has a little smaller form factor than the CM1200 which is nice. Setup using the Xfinity phone app was a breeze. Solved my high res audio file latency issue immediately. I’m a happy camper.
5 out of 5 stars
2 May, 2026
originally posted on netgear.com
Good Quality Modem
I purchased this modem to replace a previously owned Netgear Modem that had run flawlessly for over 6 years, it had outlived its service life. This modem is twice as fast as my previous modem, was very easy to install and the speed is great. I use the Internet through Cox daily and also stream video with amazing speed. This modem is a definite keeper!
5 out of 5 stars
2 May, 2026
originally posted on netgear.com
Good Quality Modem
I purchased this modem to replace a previously owned Netgear Modem that had run flawlessly for over 6 years, it had outlived its service life. This modem is twice as fast as my previous modem, was very easy to install and the speed is great. I use the Internet through Cox daily and also stream video with amazing speed. This modem is a definite keeper!
5 out of 5 stars
28 April, 2026
originally posted on netgear.com
works well, some difficulty with install
The modem works as claimed and meets all performance needs. I had a problem with it getting on line. I called the help line and determined that the problem was with the ISP. They had to do something on their end to get the ISP and the modem to communicate.
5 out of 5 stars
26 April, 2026
originally posted on netgear.com
Great Product
The Nighthawk works just fine; however, you have to contact the phone manufacturer to ensure all the options for your phone are activated.
5 out of 5 stars
10 April, 2026
originally posted on netgear.com
WIFI connect
Good product. Easy to connect (even getting Spectrum to activate was easy!!). Good support and communication when NETGEAR support has ended.
5 out of 5 stars
6 April, 2026
originally posted on netgear.com
Improved performance with an easy switch to Nighthawk
Very pleased with the immediate improvement to my internet speed. I only wish I had made switch earlier!
5 out of 5 stars
4 April, 2026
originally posted on netgear.com
Easypeasy
This modem was SO easy to install. It booted up quickly and works great.