Customer Reviews for NETGEAR CM1000 DOCSIS 3.1 32x8 Cable Modem
Item # : 2580019
Model # : CM1000-100NAS
Get the fastest internet speeds of today and tomorrow with a DOCSIS 3.1 cable modem.
- Certified by Xfinity by Comcast, COX, and Spectrum. Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service.
- Model CM1000 replaces your cable modem saving you up to dollar 168/year in equipment rental fees.
Price is $199.99
30-min pickup
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1529 reviews
Summary of reviews
The Netgear modem offers impressive performance and easy setup, enhancing internet speed and reliability. However, some users experience issues with durability and overheating, impacting long-term use.
Summary generated by AI based on customer reviews, including incentivized reviews.
Most helpful positive review
Posted Apr 10, 2026
WIFI connect
Good product. Easy to connect (even getting Spectrum to activate was easy!!). Good support and communication when NETGEAR support has ended.
VS
Most helpful critical review
Posted Apr 19, 2026
CRAPPY!!
DID NOT perform to "spec"!!
Verified Buyer
Posted Apr 19, 2026
CRAPPY!!
DID NOT perform to "spec"!!
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Prof
Reviewed at:
netgear.com
Posted Apr 10, 2026
WIFI connect
Good product. Easy to connect (even getting Spectrum to activate was easy!!). Good support and communication when NETGEAR support has ended.
0up votes 0
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JTJQ
Verified Buyer
Reviewed at:
netgear.com
Posted Apr 6, 2026
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!
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LoveMyLabbie
Reviewed at:
netgear.com
Posted Apr 4, 2026
Easypeasy
This modem was SO easy to install. It booted up quickly and works great.
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Reviewed at:
netgear.com
Posted Mar 23, 2026
Best Investment
After reviewing my internet bill, I took action to ensure reduce my bill by over $30 monthly by purchasing my own equipment. I've used other branded routers and modems, but NETGEAR is hands down the best.
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George Suggs
Reviewed at:
netgear.com
Posted Mar 22, 2026
Good Product
Good product that gives reliable and fast service!
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Carolyn Cochrane
Reviewed at:
netgear.com
Posted Mar 16, 2026
Love my new modem
My new modem is so fast on my devices! It is very nice looking on my desk too!
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Judy G
Reviewed at:
netgear.com
Posted Mar 11, 2026
Fast and easy
Great option for upgrading my modem. It was easy to install and great support to make sure it all was working.
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Chris Siliezar
Verified Buyer
Reviewed at:
netgear.com
Posted Feb 16, 2026
Fast, Stable, and Truly Future-Proof
Upgraded to the Nighthawk CM3000 with Xfinity and the difference was immediate. Setup was quick, activation was easy, and I’m consistently seeing near-gigabit download speeds with noticeably improved upload performance. The connection has been rock solid and pairs perfectly with my mesh Wi-Fi system. Great performance and worth the upgrade.
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CJ 4
Verified Buyer
Reviewed at:
netgear.com
Posted Feb 11, 2026
Excellent speeds! Highly recommend
Extremely powerful. Easy to setup, except the additional task of calling Cox to allow it to be recognized, since their online verification of the modem didn’t work. But that’s not Netgear’s fault. Overall I’m getting impressive speeds over 2Gbps to my wired desktop, & over 1Gbps to my phones & iPads.
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Tracee
Posted Jan 23, 2026
Super Easy to setup with Xfinity
This was the easiest modem to setup ever. I expected to have issues but there were none. Setup took 10 minutes max. Connected the cable and power to the modem. When the lights were stable, I connected my wireless router and powered it back on. When its lights were stable, I opened the Xfinity app on my cell. Chose activate then pretty much finished. Now, fingers crossed...
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Judith
Reviewed at:
netgear.com
Posted Jan 10, 2026
Happy with the Purchase
Very happy with the quality of the product and the ease of setup. Also purchased an Orbi!
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MLuddite
Verified Buyer
Reviewed at:
netgear.com
Posted Dec 4, 2025
Seamless transition
Well, the old one was working just fine and now so is the new one. Being on a fixed income I'm not a fan of forced upgrades that aren't in my budget but that's not Netgear's fault. Just a sign of the times.
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Tuch
Verified Buyer
Reviewed at:
netgear.com
Posted Nov 29, 2025
Great machine
Easy to set up, basically turn it on,let your provider know model and away you go. Pair with mesh system and it's a perfect setup.
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WouldBuyAgain
Verified Buyer
Reviewed at:
netgear.com
Posted Nov 29, 2025
Works well
It works well. Was simple to set up with Xfinity as the ISP.
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Bart Z Lederman
Reviewed at:
netgear.com
Posted Nov 23, 2025
Good Support (word filer)
I had some difficulties getting the modem to work (due entirly to the cable company) and the support group was very helpful. Since installation the modem has worked perfectly.
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SteveKT
Verified Buyer
Reviewed at:
netgear.com
Posted Nov 19, 2025
CM2500 review
This CM2500 modem replaced my CM1100 modem. Setting it up was easy. It has worked flawlessly so far.
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NewModem
Verified Buyer
Reviewed at:
netgear.com
Posted Nov 16, 2025
Working well!
The new DOCSIS 3.1 modem is a definite improvement over the 4 year old DOCSIS that I had. Easy to Set up. Much better for Zoom and YouTube streaming.
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M. Bumbry
Verified Buyer
Reviewed at:
netgear.com
Posted Nov 15, 2025
Works Find for My Internet Needs
I was appreciative that Netgear sent me an email letting me know it was time to update my router with a link to ensure I was getting the correct one that worked with Xfinity. Setup was easy and it’s working fine. Internet connection is good. No issues so far.
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David McElwee
Reviewed at:
netgear.com
Posted Nov 3, 2025
Staying with a proven performer
I have only been using the new modem for a week, but if past performance of my old CM600 is any indication, I should have years of issue free usage. I'll stick with Netgear until I have a reason to switch.
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