Playing Spotify playlist/Sonos speaker from my husband’s PC. When I want to stop the music I close Sonos. Most of the time this stops the music. BUT NOT ALWAYS. The music keeps playing so I go to Task Manager, but don’t see anything resembling an active Sonos app. So I restart the computer. Music keeps playing through restart. I do a hard reboot and the music continues.
At that point I unplug the speaker to stop the music.
Can anyone tell me why the music keeps playing even if all devices in the house are shut down?