I have a Sonos Connect connected with Ethernet cable to the Orbi Satellite, and it feeds audio into an amplifier that powers non-Sonos speakers. I also have 10 additional Play:1's throughout my home. I also have a Sonos Boost.
Typically I stream audio from Apple Music. Usually this works fine throughout the 10 Play:1's, although sometimes they'll cut out for a few seconds here and there. But, the Sonos Connect keeps cutting out and then needs to be unplugged and plugged back in and whatnot to get working again. When this happens it creates a loud static sound occasionally through the amplifier's non-Sonos speakers. I had assumed it was a channel conflict but the same thing happens on channels 1/6/11, and I also tried changing the channels for the Orbi but that made no difference.