15.3 changes network settings
When my Sonos products updated to 15.3, many of them changed their wifi connection to my guest network. The frustrating part is they refused to connect to my main wifi (which is a hidden network) though they were all connected to it prior to the update. I had to reboot them and in the case of my Sub Gen 3, needed to do a factory reset. I hope future software updates don’t require this amount of time and frustration to resolve.
