Surfboard mAX W21 Tri-Band Mesh Ready Wi-Fi 6 Router | AX6600 Wi-Fi Speeds up to 6.6 Gbps | Coverage up to 2,750 sq ft | 1 Router | Two 1 Gbps Ports | Alexa Support | 2 Year Warranty

For the price it's good, it has nice styling. Have to download a mobile app and create an account to set it up, and only has 1gig Ethernet ports, though it has been reliable and speeds are decent. Will probably try to upgrade to something with 10gig ethernet at some point, though those routers are much more expensive at the moment and would also have to upgrade ethernet adapters and network switch to use it. Some speedtest.net numbers with the mAX W21 Sonic 10gig fiber to Server - Frontier la,california using a MT7921 802.11ax wifi adapter from about 15 feet from the router are: (down/up Mbps) 1gig Ethernet 895.17(7ms) / 864.43(5ms) 720 Mb/s (5.2 Ghz wifi) 304.51(15ms)/248.46(30ms) 432 Mb/s (5.2 Ghz wifi) 400.86(38ms)/198.24(32ms) 229 Mb/s (2.5 Ghz wifi) 96.56(27ms) / 77.96(32ms) wifi speeds aren't as good as a t mobile 5g home internet router though the 1gig Ethernet port delivers close to maximum speed for gaming - amazon luna streaming, fortnite, halo infinite etc, the lower latency and consistency of Ethernet makes a big difference

This is a satellite for main W121 so if original is worthless and not usable then its not ideal to keep the extension satellite.

I have been using the Arris mesh for a couple years now and they have been great. Once connected, they have been never required attention, even through power outages.

I have three W21's. One is connected to my existing cable modem, the other two are satellites. Each satellite has the ability to connect a gigabit ethernet port to a client. I benchmarked the satellite, and the port attains the full available bandwidth across the combined mesh bands at almost 500Gbit/sec. I have two network clients that need that sort of bandwidth that is not available just across the WiFi. This setup has been VERY reliable. As of October 2024, I believe the W21 is not in production, so Amazon must have some remaining inventory.

First, I'd like to say that I bought this from Amazon, advertised as a NEW item. It was fulfilled by Amazon.com Services LLC. It arrived in a generic white box that wasn't even sealed. The router was falling out of the box, the power cord was thrown in and tangled, the router itself had blue ink stains on it and dirty fingerprints all over it, and it was missing the quick start guide and I suspect other important paperwork. It was clearly NOT a new item, and I have contacted Amazon about this. So beware of seller! That said, so far, this router is working great! I have it paired with the Motorola MB8611 modem and things are lightning fast! The app to set things up was a little difficult (maybe would've been better if I'd had the paperwork that was supposed to be with it?) to use, but once we (Xfinity tech and I) got everything set up, it was pretty easy to navigate. There are hidden menus that take some time to discover. I have no dead spots in the house (about 1500 sq ft) and a decent range outside of the house, as well. It has definitely improved my tv streaming and everything I do on my cellphone, but since my laptop is considerably old, it only minimally improved its speed. Maybe someday I can afford a new computer, too.