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

If you have a wifi router that hits most of your house except that one annoying spot that you just can't seem to watch videos or load websites quickly then you may want to consider what I've recently learned called Mesh networking. A mesh network is like having another wifi access point in your home but with the same SSID (network name), so you're not switching between networks as you move through the house. Mesh makes it seamless and mesh networks can be ridiculously expensive (like most things right now), however I found this item by ARRIS and have been pleasantly surprised. For the price, it works and it does the job. There aren't any bells or whistles and router administration is minimal (you can't set the frequency, for example) but my wife has been so happy that she can sit in the kids' room and be able to browse the internet and listen to podcasts! So far so good!

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???

took me a while to figre it out but my wifi is much better

What can I say? The setup was super easy once I learned the app commands via my phone that weren't the app commands? Let me explain...As I was setting up my router (Arris S33) I had no problems. It was extremely simple that even an individual from ancient times could figure it out.As I set up the AX6600 main router I went through the motions. The application leads you along a nice simple path until prolong connectivity issues. So as I look at my phone and see the "spinning circle of dots" to find a signal, then to establish a connection with my phone, and then to establish communication with the modem, and lastly to connect to the internet signal. During each step the "spinning dots in a circle" icon would show up and last much longer than one would assume.Well, it turns out I did not need to wait for the application to notify me that the step was over and now I could move onto the next step. It's funny looking back on this but while the little dots are spinning in such a wondrous circle just don't wait for the "next button" to light up... hit that glorious circle of dots with your thumb several times and it will eventually move you on to the next step.For if you don't hit that damn circle the process will time out and you have to do everything all over again.I have never dealt with such a simple product setup to be rail roaded for hours over a poor application.Oh and yeah could it be my year old galaxy phone? Could it be my phone's signal? Surely anything is possible... that's why my rating wasn't tossed into the toilet here. There are variables that may impact my experience over yours... but just in case anyone is setting up their router and/or a satellite and have prolonged time out issues, I hope that this might help someone.Overall a great product. I wish it had the latest security wifi features & that the application to set it up would be overhauled. I am not a fan of needing a very flexible ethernet cord for it to stand flush on a surface.Yet the good here is that the signal is pretty solid for my 3000 square foot house. No complaints there. I would recommend this at $200 or less for the satellite pair.I will update the review if anything further surprises me.