I have a simple set up - a Sonos “Connect” cabled to a NAS drive with my music and cabled to a Devolo powerline adapter which connects to my router. The adapter also provides WiFi to my music room. I use an ipad as a controller (or an android phone as a last resort).
Since I updated my Sonos controller software late December/early Jan 2021, my sonos playlists have disappeared. They are visible on my android phone but not on my ipad. I can go through a convoluted process that seems to recover them but it really is a pain and quite frankly, those that I demo the system to find it laughable.
I have been in contact with Sonos Support trying to either get this fixed or registered as a problem but no joy. To be fair they have been responsive but have concluded by saying that it could be the Devolo powerline Wi-Fi adapters I use to connect my music room to the internet. Short of a 30m ethernet cable dangled out of an attic window, I have no other practical way to connect the system to the internet and, until now, it has never presented a problem.
Whether their explanation is true or not I cannot say. Personally I think it is a bug in the latest apple software release. All I can say is that until this software update, everything worked fine and had done for many years. Everything else in the house also works fine and my android phone uses exactly the same WiFi connection yet it works fine.
Has anyone else had similar problems. If Sonos really can’t be used with powerline adapters that is bad news and I need to find and alternative to Sonos.