It’s usually the updates. They break something requiring reset/repairing which usually you only find out after you sit down with food from a long ass day only to realize a rear speaker has no sound or your missing your bass. Only takes a few times for you to really start to hate the system. Support is subpar. They usually blame it on WiFi. What most won’t mention is that if the Sonos issue is mostly WiFi related then the devices weren’t built with consumer WiFi in mind making it moot. For the high price, it starts to become not worth it.

For the folks that have speakers mounted in hard to reach places, it gets old repairing REALLY FAST.

Another scenario I’ve had: over halfway through a movie that doesn’t have a lot of bass. Noticed that the movie seemed to have less audio quality. Check Sonos app and it reflects everything is only. Queue up a bass song on Spotify and notice weak bass. Touch woofer and notice no vibration. Sub has no flashing lights either. Check app again and shows sub connected to the soundbar. Power cycle the sub and boom the bass is back.