Sonos Mobile App / Why?

Sorry, but your problems are almost certainly not caused by the app.  Something about your network is not getting on with Sonos.  It is not necessarily the fault of any individual or system, and can probably be fixed pretty easily.

If you want to describe your network and your Sonos system, there are people on this forum happy to try to help.

Thanks for the reply, and I understand my post was more of a rant than anything, but what else is there to try? 

You can only check for updates on the app. There is only one way to setting up a device. My wifi has no special extra-secure firewall or privacy other than just a standard password. 

The app just simply doesn’t want to stay connected, remember devices, systems, or my network on a consistent basis. Not sure what else to try

Bear with me.  So what router do you have?  Any access points or extenders or switches?  Mesh network?

What Sonos products do you have?

I have an XFinity router, not sure the model, but’s it brand new. “Gen 8”

The router is in the office where I have two Sonos devices, a Beam and a smaller Sonos One I believe, from a few years back. 

Downstairs I have two more Sonos Ones. Weird thing is the two downstairs stay connected to my Wifi, so if I get on the Spotify app I can actually find them and use them by selecting that system name, but only for those 2 devices.  When I try to manage the system from my Sonos mobile app I can sometimes find my beam and re-set it up, but it won’t stay added to my system. And my Sonos One in the office just won’t even show up. 

When I am able to create a “system” on the app, it will fall off the next time I try to use it. Every time I open the app it just says No systems found, and asks me to re-set up my devices. 

Are any of your Sonos devices connected to your router by Ethernet?  Experimentally could you do that?

There are no other network devices in the system?

I have had to set up my devices via ethernet in the past. Not sure if that’s still part of the trouble shooting options in the mobile app, but when my devices don’t show up on wifi I do remember having to go through the process of setting them up with ethernet.

But to answer your question, none of the devices are connected thru ethernet currently. Just trying to get everything working through wifi. 

Regarding network devices, I have 3x Google Mesh hot spots that help boost wifi, but the two devices that normally don’t show up are in the same room as the main router. 

Your network setup is the problem. You have two devices issuing.ip.addresses. You have split your network in two

 The Sonos app cannot find parts of the system because they are on a different network.

This is 100% definitely  NOT an issue.caused by the Sonos app. 

Can you elaborate on how my network is split in 2? 

I only have one wifi network setup, one name, one router, boosters are connected to the same name/router

Now we have to sort this out.  I suggest you start by

1 See if your router has a "modem only" mode. If it does, select this mode. If it doesn't, then tiurn off WiFi on the router and disable DHCP.

2. Ensure.that the only device connected.by Ethernet to your router is the.primary Google puck.

3. If possible, connect just one of your Sonos devices to the primary Google puck.

4 Power off everything and.power it all up again. Router, Google devices, Sonos.

Then please report back.

Google acts as a router. It is distributing ip addresses, as is your.routet. it is pot luck which device gets what. This doesn't matter with a single device like a smart TV. But Sonos has multiple devices that must stay in contact. Everything has to be on the same subnet.  Sonos doesn't have a snowball's chance in hell of working on your network setup. Sorry.