NETGEAR Nighthawk Multi-Gig Cable Modem (CM2000) - Compatible with All Cable Providers Incl. Xfinity, Spectrum, Cox - for Cable Plans up to 2.5Gbps - DOCSIS 3.1
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
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Availability:
Only 1 left in stock, order soon!
Arrives
Friday, Dec 19
Style: (Discontinued) 2.5Gbps
Features
- Compatible with major cable internet providers including Xfinity, Spectrum, Cox and more. NOT compatible with Verizon, AT andT, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service
- Best for cable provider plans up to 2.5Gbps
- Works with any WiFi router. Connect any WiFi router to this modems Ethernet port to support all your wireless devices
- 1 x 2.5 Gig Ethernet port for the fastest, true multi-gig Internet connections
- Engineered with DOCSIS 3.1, 32X8 channel bonding and OFDM(A) 2x2
- Replaces your cable modem. Save up to $168/yr in equipment rental fees
- Made for use in the US only
Description
Experience a new generation of cable modems with DOCSIS 3.1 that delivers 2.5Gbps ultra-high speed Internet connections, so you can be ready for the fastest cable Internet service plans of today and tomorrow. DOCSIS 3.1 delivers the world’s fastest cable Internet with speeds that are 10 times faster than DOCSIS 3.0. Save up to $168 per year by eliminating monthly cable modem rental fees. The Nighthawk 2.5Gbps Internet Speed Cable Modem is backward compatible with DOCSIS 3.0 and works with all Internet service speed tiers.；The product is multiple voltage compatible, that voltage arrange is 100-240V.
Specs & Other Info
| Specification | Details |
|---|---|
| Brand | NETGEAR |
| Compatible Internet Service Providers (ISP) | Xfinity, Cox, Spectrum |
| Connectivity | Ethernet |
| Works With | Routers |
| Dimensions | 9.92 x 4.7 x 8.7 inches (LxWxH) |
| Series | CM2000-100NAS |
| Model Number | CM2000 |
| Weight | 1.02 pounds |
| Color | Black |
| Manufactured In | Vietnam |
| Release Date | September 22, 2020 |
Frequently asked questions
Yes, the Nighthawk CM2000 is a multi-gig cable modem that is compatible with all major cable service providers including Xfinity, Spectrum, and Cox.
The Nighthawk CM2000 can support cable plans with speeds of up to 2.5Gbps. This makes it ideal for users with high-speed internet plans.
DOCSIS 3.1, or Data Over Cable Service Interface Specification 3.1, is the latest technology in data transferring over cable TV (CATV) systems. The Nighthawk CM2000 utilizes this technology which allows it to provide higher internet speeds and greater efficiency.
No, the Nighthawk CM2000 is a cable modem only and does not include a built-in WiFi router. You would need to purchase a separate WiFi router to provide wireless connectivity in your home.
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🚀 Abunda's Overview
This is our summary and key points to consider based on customer reviews.
In summary, the Nighthawk cable modem CM1200 seems to perform impressively, delivering consistent and robust internet connections. However, several users reported difficulties setting up the modem. Some customers had compatibility issues with the phone service, and others found it challenging to set up the modem with various ISPs (Internet Service Providers). Yet, once set up, many users have praised the modem for delivering strong and steady connection speeds.
Pros
- 👍 Consistent and solid internet connections.
- 👌 Improved speeds during peak hours.
- 👏 Easy to manage if you understand the setup process.
- 👥 Works well with various devices connected at the same time.
Cons
- 👎 Can be challenging to set up.
- 👿 Compatibility issues with Spectrum's phone service.
- 🤔 Issues with Xfinity phone tech support and setup.
- 😱 No on/off power button on some models.
Should I Buy It?
From the reviews, it seems like the Nighthawk CM1200 modem provides reliable internet connection with high speed, which is a great boon for any Internet user. However, some users reported difficulties during the setup process and compatibility issues with Spectrum's phone service. If you are comfortable with potential setup challenges and don't use Spectrum's phone service, this modem could be a solid choice.
Style: (Discontinued) 2.5Gbps
The ISP (which will remain nameless), that I rented my Internet gateway from did not adhere to sound security protocol. I myself, as a cybersecurity professional with more than 10 years experience, am naturally paranoid about weak passwords. This particular ISP limits the variety of keyboard characters allowed for cable modem management passwords, making them easier to crack! In fact, on a few occasions, my passwords were changed without my consent. From that point forward I decided to buy my own cable modem that would allow me to choose the access passwords without character limitations. Now that it is up and running I am beyond happy. My desired security posture is now a reality, and my internet finally achieves 1gb downloads, better than the ISP's cable modem that was supposed to do the same thing. My network is tight security wise, and this Netgear Nighthawk CM2000 helped me realize that. Finally, I had to overcome one technical issue that I thought was generated by the CM2000. After registering my cable modem with Netgear, called tech support. Best dang support I've dealt with in a long time! From one geek to another, we were able to speak the same tech-ease and I learned more about my new CM2000 and the DOCSIS standard than I knew before the call. Found out that the CM2000 was not the culprit, so I called the ISP to handle it, problem resolved. The one setback for Netgear that I thought was serious enough to mention is that as far as firmware upgrades there seems to be tit-for-tat between Netgear and this particular ISP. Either group seems to point the finger at the other when it comes to whose responsibility it is to push out firmware upgrades. I hope, for customers' sake, that these two outfits work out their differences on this. Heavens forbid that there is a security vulnerability that requires a firmware upgrade! I shiver to think about that outcome. Other than that, I am very happy with my purchase. UPDATE (6/2025) It's been a few years since I pinned the above review of the CM2000. Now it's time for an upgrade from the CM2000 to the CM3000. This is what I've learned: The CM2000 performed honorably for the most part. However over time the status LED lights began to shut off one after the other. Today the only one that is still operational is the Online LED. I understand that there are others who've experienced the same malfunctioning LED issues as well. Other than that I am pleased with its performance, so much so that I am considering purchasing it's more mature cousin, the CM3000. The one BIG issue I have with this consumer-class cable modem is what seems to be the unwillingness of its manufacturer Netgear & my cable service provider Xfinity/Comcast to agree on WHO WILL PROVIDE THE FIRMWARE UPGRADES! This was the 800lb gorilla that otherwise would make the experience with this product a 9/10! Just as with the CM2000, Netgear advises users to access their cable service provider for the firmware upgrade for the CM3000. With both devices Xfinity does not have documentation on its website which gives instructions on upgrading the Nighthawk CM model firmware: https://www.xfinity.com/search?q=Netgear%20cm2000 . Similarly, Netgear support encourages users to contact their ISP for upgrades: https://kb.netgear.com/000036375/What-is-the-latest-firmware-version-of-my-NETGEAR-cable-modem-or-modem-router . Either way, if there is a need for a future firmware update anyone purchasing this item will risk ending up with an expensive paper weight if both the manufacturer and the ISP refuse to come together and resolve the issue. For this reason I am exploring other cable modem options, ones where firmware updates are available for ISP-approved devices.
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Reviewed in the United States on May 8, 2023 by BP
Style: (NEW) 2.5Gbps
I decided to upgrade from my modem router combo and go with this CM3000. Set up was simple through the xfinity app. No issues and now my speed is up to 2gigs. this plays nice with my orbi 770 mesh router.
Reviewed in the United States on October 31, 2025 by PBV
Style: (NEW) 2.5Gbps
I was excited at first to get this because of the reputation. However, 3 weeks into owning this, today it goes out on me for no reason. At first I thought it was a outage with Spectrum but called them an nope, it was my new modem. So I trouble shot it and tried to get Spectrum to re-register it on their network, it absolutely would not register. So I reset it. It would boot up like it normally does but then when it looked like it was ready to go, it started resetting itself over and over again. I called Netgear for support (HUGE WASTE OF 5 HOURS) and they kept having me do the same thing over and over and over again. It was so pitiful and I've been in the IT industry now for 30 + year so I knew what I was doing but I don't think THEY DID!!! I have a horrible back issue so I kept running back and forth between my main computer for the chat and the modem to do things to it. Finally I said after being in so much pain I can't handle anymore, could you please just do a return & repair? No sir, I can't without a diagnostic code off the modem. I said well I don't know how that is to happen if everything you've had me do does not work!!! So it looks like I'm stuck with a $260 modem that does not work because of Netgear's pitiful return policy!!! DO NOT PURCHASE THIS OR ANY OTHER NETGEAR PRODUCTS, EVER!!! Unless you want to deal with numb nuts at the support group at Netgear!!!
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Reviewed in the United States on August 21, 2025 by Marcus Wyatt
Style: (Discontinued) 2.5Gbps
This Netgear Nighthawk CM2000 cable internet modem is pure awesome. I quickly noticed a increase in both my speed and performance while using this unit. It's so very many light years above the Arris Surfboard S33 that I last had that it will never be funny again. The best perfect match for this unit that I have come across as you all see in photo is the Nighthawk BE19000 router, future proofing my purchase with Wifi 7. I am paying for internet speed of 1gbps, with that said, looking at the photo again you can see that I am getting every bit of my money worth and then some. Another thing that I like about the CM2000 is that it doesn't get hot like my Surfboard S33 was until it played out. The two Nighthawks look so beautiful together. With this setup came another change, that change was my eithernet cables, going from using the round ones to the flat. Awesome outcome. Like the old saying goes, you get what you pay for. I pulled out and these two devices with the flat cables put out. Giving me every single drop that I am paying for and you can not get better than that. And this is also why I never ever except gear from those I am buying my service from. You'll never get all that you are paying for, and one other thing, I never ever buy a modem that doubles as a router to.... this is never the way to go. For the best performance, these things were made to join forces and become that mighty force. And that's exactly what I have here now. The best part is yet to come and that's when Wifi 7 is in place, I'll already be ready for it with the BE19000 and the CM2000 having it's back. For those that's down playing these products, it's strictly because of something that "YOU" have going on, not because of these products. My first two routers were Netgear, so it's more than safe to say that I have only come back home. They are handling every single thing I am throwing at them. I recall the days when the play store would load when I open it, with these devices paired together, opening the play store now a days it's like it never went anywhere or was never closed. Now I don't see the word "Downloading", I see installing. If anything happens to this setup, I'm going to first cry and then re-buy.
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Reviewed in the United States on July 1, 2024 by Mr. Eddie S. Mr. Eddie S.
Style: (Discontinued) 2.5Gbps
Easy to install once the cable company switched on their side. Have Cox cable
Reviewed in the United States on December 11, 2024 by Diver55