NETGEAR Nighthawk 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

This modem just screams. My internet test (obviously run through the router) registers just above the 1 Gb/s I am paying for. If my ISP could have done their job correctly I would have had this up in running less than 30 minutes.

This is a fantastic high-speed modem. I used it for my upgrade to 2gbps with Comcast. It's silent, doesn't get very hot, and boots up fast. I haven't run into many connectivity issues.Every once in a while it'll need a restart if I push 2gbps+ for an extended period of time, but I haven't been able to attribute it to this device, vs. something else. It's such a rare occurrence that it hasn't bothered me.

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.

Nighthawk reliability clean form factor easy to install Just don’t forget to register your new modem with your cable provider

It's not a one-year warranty. My modem failed in 10 months. I called Netgear to troubleshoot the problem. The tech support lady wanted me to pay for a 1-year or 3-year warranty before she could troubleshoot. I would not buy from Netgear again.

At first, the cable modem download and upload speeds were the speed of my previous cable modem due to the instructions on how to register the cable modem with Comcast Xfinity. I was expecting 2 Gb/s download and 300 Mb/s upload speeds. The download was much less than 2 Gb/s and the upload was 40 Mb/s. Using the Comcast Xfinity app did not remove the old cable modem from my account. I called Comcast Xfinity and they removed the old cable modem from my account. Then, I got faster download speeds and around 300 Mb/s upload.

Seems to be working very well so far. There is a noticeable increase in the internet speed

After the initial install internet speeds were erratic and the modem required a factory reset. Perhaps the firmware from factory was bad or it failed to update on first boot. However, after the factory reset and updating firmware, the modem has functioned perfectly since, stable with consistent speeds.