Sonos Arc Ultra (Gen4) and Sub 4 can't connect to Wifi

 Are you saying the Arc Ultra by itself does not connect to WiFi when you get to that point in the new speaker setup process?

The Arc Ultra absolutely works via wifi.  I suspect your specific wifi setup isn’t supported or there is some other issue going on with the network setup.  It might be helpful to provide some info on your wifi router and any extenders/satellites you’re using.

Also, minor point, but there is only 1 generation of the Arc, and 1 generation of the Arc Ultra.  ‘Gen 3’ and Gen 4’ aren’t applicable to those two products.

You to get the Sonos naming  conventions right. There are no “Gen 3” and “Gen 4” devices as a category. There’s al Sub (Gen 4) now, but the Arc only has one generation and now has an Ultra next to it, so also in it’s first generation.

You were “realizing that these do not work via Wifi”. What do you mean? The newer Sonos devices won’t do Sonosnet so they need WiFi.

What faults did the system report connecting it?

I mean Arc Ultra is connected to WiFi but Sub4 and Era’s 300 cannot connect to WiFi in my living room System

 Are the 300s & Sub brand new?

All Arc ultra, Sub4, Era’s 300 are brand new, inclusive we tried to set them (sub4 and Eras) with Arc ultra connected to the router via network cable, the system have the latest update also.

Once I move again the Arc Ultra to my living room and back to Wifi the Sub4 and Era’s didn’t work again

 So the Sub & 300s were initially independently setup & connected to WiFi using the app?

II did all those step with Sonos support technician once Arc Ultra back to Wifi the Sub4 and 300s dissapear from the Sonos App, I didn’t had this issue with Gen3 lol

It does not work with Android phone, it works if you have an iPhone 

I tried many times to connect to wifi but it would not connect.

After that i tried to conye with iPhone and it connected fine 

I couldn't get either the ARC or ARC Ultra to connect to my WiFi.  I changed from a Netgear mesh to a TP Link modem and everything works.  FYI, I saw in the trouble shooting that it only would connect to 2.4 Ghz.  Mine all connected to 5 Ghz. 

I also spent well over an hour with tech service with no solution.   The modem change idea came to me in the middle of the night. 

That is crazy. But I'm finding it's not connecting to my Google Pixel no matter what I do. I'm about to go return this crap honestly. Ugh

After installing using an iPhone I could add my Xiaomi Android phone and it works fine now 

It was an iPhone 12 pro if it makes any difference

I just reset the Arc Ultra by holding the Bluetooth button while plugging it in and then waiting until the lights went orange and white. Then I rebooted phone and reinstalled app. And it worked!!!! It's finally connected to WiFi!!! I was so about to give up and return it to Best Buy!! 

Good it worked

I tried the same reset solution, but it didnt work for me, the Iphone solution was my last try before returning the product, luckily it worked😄

After I used the other router and got the components to connect,  my Samsung 22 connected with no problems.   The tuning worked great. 

Nice it worked, but it is sad that you need do so many things for it to work.

At that price it should work immediately 

Even more interesting I was told it only used the 2.4 Ghz signal and to rename or turn off the 5 Ghz signal to see if then the Netgear would connect.   When I got it to work, it connected at 5 Ghz.  Tech support needs updated information for the Ultra ARC.