Today my Sonos system turned up the volume by itself while 5 speakers was attached. I have a Sonos SL attached to LAN and WIFI turned OFF using SONOSNET.
I was using Spotify Connect and having the Sonos app open. Suddenly it started to turn up the volume gradually to max.
I submitted diagnostic 2120365732 right after the event.
This is really concerning :-( what is happening? How can I avoid this in the future?