Whenever my PC is turned on or off, the Sonos Era 100’s make a connection sound… This is VERY ANNOYING as it disturbs the household in the wee hours! I have checked Windows Startup Applications and Services and there is nothing there to indicate Sonos app/service is on permanently.
I have 2 Era 100’s in a stereo pair configuration and I use both the PC desktop app and the Android Phone App with them.
A similar question was raised 7 months ago however the “fix” offered does not work.
Era 100 makes loud sound when connecting and disconnecting bluetooth
Era 100 has an Idle Auto-Disconnect setting which will disconnect your Era 100 from a Bluetooth device after 30 minutes of sitting idle. This setting is off by default, but can be turned on in the
Settings tab under System → Era 100 → Bluetooth → Idle Auto-Disconnect.