I’ve had a Sub Mini for a couple of months connected to Beam Gen 1. Been very pleased with the extra oomph. This week there was some kind of glitch with the Wi-Fi - my work laptop disconnected unexpectedly and Windows showed the globe symbol rather than the ‘curvy line’ connected to Wi-Fi symbol. I managed to connect the laptop to the Wi-Fi after a few minutes. The next day I noticed not all Sonos speakers were showing in the app and it was inconsistent, some speakers appearing/disappearing as I watched! I eventually decided to turn off the router and speakers, then turn them on one by one once router was back up and running. This solved the problem and all speakers consistently show in the app but ever since there has been a relatively quiet pop/crackle emitting from the Sub Mini when it is idle ie. TV on but no sound pushing through it - when perusing Netflix menu for example.As soon as we start a movie the Sub mini functions as normal. When we pause the movie the noise starts again immediately but if we just mute sound (but movie still playing) there is no odd sound.
On a positive it is still useable for TV watching but the idle sound is distracting and annoying and I’m concerned it might get worse over time.
l’ve tried power cycling the Sub and the Beam but with no success. Has anybody had this before and found a solution?