


The NETGEAR CM1000 Ultra-High Speed Cable Modem provides a connection to high-speed cable Internet with speeds up to 1 Gbps. It is the industry’s first DOCSIS 3.1 CableLabs Certified cable modem, 10X faster than DOCSIS 3.0. Working with DOCSIS 3.0 and DOCSIS 3.1 cable Internet service providers, it is the ultra-high speed cable modem ready for today’s service plans and future upgrades. Enjoy ultra HD video streaming over IP with 2×2 OFDM or 32×8 channel bonding giving you the fastest download speeds—even during peak hours. Save up to $156 a year* by eliminating Internet service provider rental fees. Ideal for fastest Internet cable services like Comcast XFINITY Gigabit, Extreme and Performance data plans.
Compatible with all major cable internet providers with internet speed up to 1Gbps. Currently certified with Spectrum and Cox (up to 1Gbps), Xfinity (up to 800Mbps). 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 168/year in equipment rental fees
Connect any WiFi router to this modem’s Ethernet port to support all your wireless devices
1 Gigabit Ethernet port connects to your computer or separate WiFi router
Made for use in the US only
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10 reviews for Netgear Gigabit Cable Modem (32×8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity – CM1000-1AZNAS (Renewed)
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D. Johnson –
Great price.
Easy to install, working great.
Amazon Customer –
i was worried about going refurb but this modem has performed well for 3+ months now.
i provide my own equipment for internet. i was very leary about purchasing a refurbed modem but i figured i would give it a try since i could return it if it didn’t work out. my surfboard that was 6 years old started to fail a little more frequently than i was happy with. this guy has been performing great for the past 3+ months.
babnab1 –
SIMPLE SWAP WITH XFINITY
Cable has been acting up for a couple of weeks and I noticed the modem’s light were flashing differently and intermittently. Ordered the modem and it came the SAME DAY!!! I just used the same power cord and Ethernet cable for the new modem. It took all of one minute. Turned it on and waited for all the 4 lights to turn green and the bottom one to turn amber. It took about 20 minutes.It did keep on resetting, but that was expected. Called Xfinity with the new MAC#. They reset everything. I then reset the router and I was back in business. Total time from beginning to end (including waiting on the phone with Xfinity) about an hour and a half. Now I have a good connection and the speed of the internet seems super fast now. The old modem was installed in 2017. I am extremely happy with purchase.
Guy –
Defective “refurbished”
Warning – this listing is for refurbished modem. That means somebody bought it but didn’t want it. I wonder why! Didn’t work, wasted hours. This was supposedly tested and certified refurb. Don’t waste your time.
Aubrey Sheldon –
Nice for a Refurbished modem – worth the money
My main dislike was that it only came with a simple setup manual of only a couple pages that was next to useless. Once I got my input cable repaired (broke it removing my old modem) and hooked up the CM1000v2, It kept re-booting and re-booting (they said it would do this several times in the setup) and still it would not find my internet provider’s signal (COX and I’ve been a customer nigh on 20 years), I used my phone and downloaded the full manual. After reading through that, I did what the little included pages did not say, especially since this was a re-furb. I connected my computer to the modem and logged on to it. Did a “Factory Reset” you can do this with a recessed button and I highly recommend doing that as soon as you get it. It still didn’t find the signals, but instead of waiting until the proper light stayed lit as the book said, I called COX’s tech service (using a different provider and if you had DOCSIS 3.1my old one was 3.0, this may work differently) I gave them the serial# and MAC address of the modem. They set me up there and told me it would take 20 minutes or more for this modem to find all the channels and begin working. Be patient, the tech was right. Took almost 50 minutes, but finally it was on line and wow what a difference it makes over the old CISCO (DOCSIS 3.0) modem I had been using for over 5 years without ever turning it off. Now, we’ll see how well this re-furb stands up to 24/7 continuous operation and I may revise my review at a later date if it stops working, but for right now, I love it.
T. Wennberg –
Great modem, works well, no complaints.
Works great as a second modem upstairs in a dead spot. No complaints so far. WiFi signal great, speed good.
Dave the Integrator –
Easy, fast, and reasonable “Renewed” swap
Worked great replacing a DOCSIS 3.0 modem that gave up.My experience with “renewed” products has been very good. It cost the same as having the service provider come out to tell me that I needed to replace it.Set it up and called the ISP with the serial number and MAC to activate it.
Amazonshopper56 –
Used refurbished modem
So far it works great.
No –
Mein Netzbetreiber teilte mir mit, dass ich das Gerät an meinem netz nicht zum laufen bringen werde (techniker hat es nicht geschafft). Daraufhin wollte ich das Gerät natürlich zurücksenden – allerdings war das nicht moglich, da ich in den Rücksendeoptionen nur ein ungültiges retourenettiket erhielt.
harburn –
My ISP has a more nuanced choice than the “suitable for Cogeco” It is not good for my area and has to be returned. Not a manufacturers problem.