Yes….…  I have 15 devices and they drop in / out of the app……. the network matrix in diags is built complete on some devices and some not.

I have a mix of S2 Connect, Connect:Amp, Playbar, ARC, and subs.  All are wireed and all have WiFi Disabled except 1 device because the “Disable” no longer works from the app.

Sonos has lost all the appeal to me.  If this is not fixed soon all the devices will be gone and will change to something else.

Is there a fix to it or do we have to endure?

It’s much more likely to be a network issue, rather than an issue in the Sonos system itself. Hard to be sure, as it does vary from install to install, but you may want to read the wifi interference FAQ, and apply as many of those potential solutions as possible.

If your system is wired, it’s less susceptible to WiFi interference, but is still exposed to an IP address issue. Sonos can only be as good as the network it is connected to. You may want to try a ‘network refresh’ by powering down all Sonos devices, and rebooting your router. Give the router a couple of minutes to reload everything before powering back on your Sonos devices. This will do two helpful things, first getting a new IP address from the refreshed router, but also causing a reload of the Sonos software on the device.

If you’re still getting dropouts after these, I would submit a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it.

There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.

When you speak directly to the Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.

That sounds like good advice. I will try that. Thank you!!!