ARRIS Surfboard mAX W121 Tri-Band Mesh WiFi 6 System, AX6600 Speeds up to 6.6 Gbps, Coverage 5,500 sq ft, Alexa Support

Just finished setting this up this morning and so far very pleased with the product. The setup was easy with only 2 minor hiccups that were easily resolved. The first issue was the inability of the control app to join the newly created SSID during setup. This is most likely an iPhone security feature preventing apps from hijacking the SSID for malicious intent. Exiting the app and using iOS network settings circumvented the issue. The second issue was a security camera initially failed to connect after completing the setup of the mesh system. It's one of these cheap IOT devices that is simply poorly designed. Rebooting the camera resolved the issue. Otherwise, all my devices are now above -65db which is the threshold for voice quality wireless signal. Very pleased with the performance.Pros+Easy setup+Fantastic coverage+Great performance (quick speed test off the satellite measured 700Mbps)+Nice modern designCons-No WPA3-Barebone configuration features-No web interface management-No built-in firewallI am not taking a star off the review as I was aware of the shortcomings and made the purchase with full knowledge of the cons. With that said, if you are looking for a no-frill "set-it and forget-it" mesh system with high performance, this system is a fantastic option. If you like to tinker and customize your wireless network settings, this product is not for you.

I am SO VERY MAD at myself for waiting until after the return window closed to install these!I purchased 2 of the W121 sets to replace my existing mesh wireless system. My existing system worked fine, but the company which made them had stopped providing security updates, so I decided to replace it. Since I had a mesh system with 1 base and 2 satellites and wanted at least the same number of mesh boxes. So, I bought 2 of the W121 sets (even though the tech support said it could only use the base and 2 satellites) because buying a second pair on sale was about the same price as a single unit.The hardware appears to work well, but they made an incredibly bad decision in forcing the use of an app to configure and setup the device. I trusted a big name like Arris to not completely mess things up, but holy cow is that app horrible. I see other people with the exact same issue as me (the app refuses to connect satellite units and is crazy slow in initial setup.)As of now, the base is working as a stand alone/single unit, but I can't access it with the app unless I do a factory reset (you have to use a paperclip or similar item and press and hold the reset button hidden in the tiny hole by the network port for a long time - they told me to do 30 seconds.) Once I do that, the app will let me completly start the install process over, but it refuses to add any additional units and just hangs eventually. Restarting the app takes it back to the initial install screen with no option to bypass it.ARRIS - IF YOU ARE GOING TO ONLY PROVIDE AN APP FOR SETUP, MAKE SURE THE APP WORKS!!! So very, Very, VERY angry with whoever made this decision at Arris.There was no documentation in the box (mine was completely new with all the shrinkwrap and the plastic peel-off intact, so its not like the issue was someone sneaking a used unit into my sale), just a 2D barcode for directing the owner to download their (horrible!!!) app.Update: Feb 17 2023. I have a couple of items to add.1) I used one of the "spare" units as a stand-alone device for my in-laws. Since it the app had been updated in the Google Play store, I had my wife install it on her phone and used that to set it up (my thought was that it would not have any trace of the issues I had with our home unit.) She had similar issues, but after a lot of playing around, I got it to work.2) I uninstalled the app on my phone and re-installed it, then tried to see if it would let me add a satelite. No luck!.So, really frustrating as the hardware works great, but the install/management app is so bad.P.S. I saw one person put out a rave review about how easy the app is to use. Unfortunetly, he is misunderstanding what people are complaining about. Its not that the app is hard to use (it appears to be VERY simple and has a lot of newbie friendly options.) The issue is it DOES NOT WORK for most people and there is no other option to setup and mange the hardware than with their broken app, so until/if they fix the app, its going to be a gamble on whether this is a nightmare or a win for you.If this thing works well for you, maybe list out what type of device you use to set it up??? I know my Android phones have not had luck, so maybe IOS users have better luck???

These guys set up it 0 problems. It was so easy that it just felt like I clicked continue every few minutes. There was one hiccup where my iPhone decided to rejoin my old WiFi. Disabling the option to auto join known WiFi’s would have prevented that. Just relaunching the setup worked. It picked up where it left off.My speedtest on my old wifi router hooked up to att fiber 1g - 120Mbs.The first speed test done was immediately after setup finished on this was 320Mbs1hr after setup completed and it completed optimization - 510Mbs!!Blazing fast. Running for over a week without a single disconnect from tvs, mobiles phones, tablets, 2 desktops, and a dozen microcontrollers. The coverage is so much better. With 5g a stronger signal means faster speeds.The only issue I have is the app. The only way to manage this is via app! Initially I thought it lacked any actual management capabilities, settings are just hard to find. It was made for people who likely are renting WiFi from a provider. It’s horribly rated but they continue to make improvements. This is by far the best deal on a wifi6 mesh that has an incredibly fast backplane between the mesh nodes.