Customer Ratings & Reviews

Comcast recommended I get a new modem to accommodate the speed increase to 200 download. Before the modem change I was getting 125 download speed. After I installed the NETGEAR - CM1000 Ultra-High Speed DOCSIS 3.1 Cable Modem - Black, my download speed increased to a consistent 235. The install was very easy and required little assistance from Comcast. Also the modem's software is upgradeable over time to accommodate much higher speeds. It is expensive but it delivers. Highly recommended.

Great product and easy to setup! Will definitely be recommending to friends and family!

I was tired of paying rental fees on my Comcast modem, so I bought this to replace it (along with a router). The internet speeds I can reach on this are significantly higher than the old router that Comcast provided. Setup was easy, and I was able to do it without having to call for help from my ISP. All in all a good bargain for the results I am getting.

Installed by calling cox communications support. They asked me plug everything in, turn the power on & report what the lights were doing. It took approx 90 seconds for all solid green lights except for the bottom ethernet light which blinks very quickly. Then it was done and I'm back up and running. Ookla Speedtest on cox.com consistently at 180+ on 150 service (previous ARRIS 6183 consistently around 125). 32 channels locked downstream and 4 locked upstream (only 4 available in my area). Firmware V2.01.14.

Runs fast and well. Great for it's price. May get a little hot sometimes.

I bought this to replace a Netgear C7000v2 that had to be reset at least once a day and never got more than 50% of the internet speed available on my service plan. This modem, paired with an OrbiPro, has been rock solid since I installed it 1 month ago. It never needs resetting. It gives me 100%, and often more, of the internet speed on my service plan. Interfaces flawlessly with the OrbiPro wireless router and satellites.

If you have a modem 2 years old or more its time to get a new one. I installed and did the setup and my internet speeds are 5 times faster.

I purchased this DOCSIS 3.1 modem to support an upgrade to gigablast with our ISP. I was already using an Orbi router with 2 satellites to cover our large 3 story home. We now have wifi speeds between 500-850 mbs depending on which room you are in. Our speeds were between 50-150 mbs with the same router and our old DOCSIS 3.0 modem. It was easy to setup and so far we have much higher wifi speed.

After getting set up with internet in my home with Xfinity, the techs couldn't get the system working and they left their modem at my home. I was able to get it working, but their modem was not good, so I purchased this one and took theirs back to them. The Netgear modem is excellent and the speeds are great. I have paired it with my Netgear Nighthawk router and they are working terrific together. I highly recommend this modem.

I have the Comcast/Xfinity Triple Play (Cable TV, Internet and Home Security). I previously had the voice feature but replaced it with the home security because I never used the voice feature and wanted gig speed. This modem is one that allows gig speed. I get well over 900 Mbps on my desktop and over 500-600 Mbps on my iPhone. I also have the Netgear Orbi router to go with this modem. I highly recommend this cable modem. Easy to install too.

I bought this modem to replace my existing xfinity router. Set up was a breeze, didn't even have to call xfinity and the instructions are included. The only bad thing for some is that it only has 1 ethernet output, but I am using it with my linksys ea9500 which has many outlets so it wasn't a big deal. The two of these work amazing together and the modem is very small and lightweight. Just make sure you get a router as well if you plan to use WiFi as this is only a modem.

We recently changed internet carriers due to desperately needing faster speeds and we decided to try NETGEAR - CM1000 Ultra-High Speed to help maximize the upgrade and it has been excellent. It was initially challenging to break the $200 mark, but I would recommended it. It works great and we recently learned that in the next year or so many internet providers are going to be upgrading to 3.0 or higher and this unit will not require us to do any additional upgrades.

Easy to setup doubled speed no longer needed to have any extra signal boost products for the rest of the house

This cable modem works fantastically and pairs up great with the Netgear Router. Very, very satisfied with these units!

Upgraded to gigabit internet, and my old Surfboard modem wasn't fast enough. Saw a thread on Reddit that recommended the Netgear modem over the Surfboard DOCSIS 3.1 one, so I decided to go for it. Installation was easy, I did have to call Comcast to have them add it to my account and after they sent the reset signal it started working right away. Easily hitting the gigabit speeds I'm paying for so I'm happy!

So far it's been great. I upgraded from an 8x4 channel and all the additional channels have made a huge difference with our speed and reliability. A bit pricey compared to other modems but the additional channels and the docsis 3.1 support should give you some "future proofing". Plus in all reality it will pay for itself after a while with the money you save on the equipment rental from your ISP.

I’ve had this for over a year now and it’s a set and forget type of device no issues whatsoever. Also beats paying your internet provider a device rental fee every month!

This modem rocks! For Xfinity gigabit service you need a docsis 3.1 modem. Xfinity has certified 3, an Arris SB8200, Motorola MB8600 and of the Netgear CM1000. I tried the Motorola MB8600 because it was cheaper. I decided on the Netgear. Activation was simple, I just call customer service and told them I had my own modem and would like it activated.You can also do it online, but I wanted to make sure everything was handled correctly.

Brought it for Optimum Internet 1GB Plan and it works out well. Don't need to contact Optimum to change the modem address because was able to use the do-it-yourself way. Modem is up and running less than 10mins. Good Bye Modem Rental Fee. Thank you for the same-day shipping too!

Easy to setup. I have Xfinity for at home internet. This modem was easy to get hooked up and have ready to go very quickly. Connected my own router to it, I am using a Eero mesh network with 2 routers and have 0 issues since I got connected. Well worth the money spent to be using my own gear. Would reccomend!