I have this set up. Nintendo Switch -> LG C1 -> Sonos Beam gen 2 + 2 Ikea Symfonisk. I have eARC activated, bitstream, passtrough on TV, Sonos app is showing Multichannel PCM 7.1 and sound is cutting in and out. This only happens with the Nintendo Switch, I have no issues with PS5 or any streaming service from the TV. Changed the HDMI cable and issue was solved for some days, but now it's doing it again. Had beam connected with WiFi, changed it to Ethernet cable and issue is still the same. Any help?
Best answer by danieltonioView original