I have Sonos devices with Alexa setup in 3 rooms. In 4th room, I have a Beam that WAS setup with Alexa, but I removed Alexa from it to try to solve this problem: while watching tv using the Beam, if someone speaks to Alexa in another room, the Beam mutes momentarily. I’ve 1) disabled Alexa (in the Sonos app) on the Beam, and left it off. 2) disabled Alexa on all devices in the Sonos app, turned back on for all but the Beam. 3) disabled Sonos skill in Alexa, then reenabled.
Best answer by Corry PView original