NETGEARNighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM3000) – Approved for Today’s Fastest Speeds - Works with All Providers Incl. Xfinity, Spectrum, Cox - for Plans up to 2.5Gbps

Great Cable Modem. Had to upgrade my Motorola modem to accommodate greater speeds. The Netgear Knigthawk was easy to install and set-up. The ardest part was registering with Xfinity, but now done and all working well. Would recommend this modem for easy set-up, cable company compatibility and great throughput connectivitiy.

I recently upgraded to the NETGEAR Nighthawk CM3000 DOCSIS 3.1 cable modem, and it has been an exceptional performer for my high-speed internet needs. Here's my experience:Pros:Supports Top-Tier Speeds: This modem is approved for cable plans up to 2.5Gbps, making it perfect for today’s ultra-fast internet and future-proofing for years to come. My speeds are consistently reliable, with no dips or interruptions, even during peak hours.Broad Compatibility: It works seamlessly with all major cable providers, including Xfinity, Spectrum, and Cox. Activation with Xfinity was a breeze, taking only a few minutes to get up and running.DOCSIS 3.1 Technology: The mid/high-split support ensures better upstream and downstream capabilities, making it ideal for heavy internet users like gamers, streamers, and remote workers.Compact Design: The sleek, vertical design saves space and blends well with my other networking equipment.Cons:No Built-In Wi-Fi: This modem doesn’t include Wi-Fi capabilities, so you’ll need a separate router for wireless connections. For me, this wasn’t an issue since I paired it with some other routersPrice: It’s a bit pricey compared to some other modems, but the performance and future-proofing make it worth the investment.

Quality product. Fast speeds and NO DROPPED SIGNALS. Best choice to get away from cable company modems. Handles many devices, streaming with no problems

We have 2 people who work from home and a gamer in the house, so when our modem died, we needed a new one working quickly. This modem arrived overnight and was super easy to install and get online. Our internet speed is noticeably faster too.

I purchased the CM3000 in December 2024 because I had had issues with my previous Modem and saw this was a fast and reliable product. The Modem worked Ok for 8 months, I had to reboot every 2 weeks to keep it running smoothly. In August 2025 it stopped working completely. Product support at Amazon and Netgear was non existant Very disappointed indeed. Seems to be a race to the bottom for Modem manufacturers.

It works preety seamlessly with XFinity Internet. While it's rated for up to 2 Gbps, XFinity only rates it for up to 1.2 Gbps on their service (though that may just be them trying to get you to rent their garbage hardware).It has a 2.5 GbE port (which is backwards compatible with a standard 1 GbE Ethernet port on the other end) as well as 2 separate regular 1GbE port that can be turned on for LAGG (requires a device on the other end that understands and is configured for LAGG also) so you can do dual channel if you don't have a 2.5GbE port on the device at the other end (or a 10GbE port and Cat 8 Ethernet cable if you have hardcore network setup).You do have to manually enable the LAGG ports in the settings, otherwise they act like regular individual ports (multiple ports on a modem cannot have multiple client devices connected).Speed on a 1GbE connection is excellent without any overheating or hiccups. It runs extremely stable too, it hasn't had to be reset at all in the > 1 month I've been using it.

This works as advertised, Only 4 stars the previous one broke after 3 years. This could have been due to an Xfinity blunder, since it broke just as Xfinity was playing with the connection. But I have no way of knowing.I got it because it has voice capability (it is just an Xfinity packaging saving), so most will not be interested in that feature. The non-voice version I would guess, is just as good.Simple to set up (with Xfinity, at least). Not the cheapest, but it does supply the throughoput.In general, a perfectly good product.

Love this. Smith installation (Cox Internet), works flawlessly.