I’ve been having trouble with erratic responses from GA on Sonos for days, and now it’s completely broken! I eventually tried the last resort of unlinking and relinking my Sonos account to Google. Now I can’t activate Google Assistant on my Sonos speaker at all. Google sees the speaker just fine, and can play music to it. The Sonos app sees the speaker just fine, and can play music too it. But Google Assistant won’t link to it - Google Assistant just says that it couldn’t find the Sonos speaker, even though Google Home is playing music to it right now.
Just as a test, I added Alexa instead. Installs quickly and works fine. The fault is between Sonos and Google.
Returning to GA, I finally got it to find the Sonos speaker and install after about 25 tries. But it’s still not functional. It either gives no response or says “something went wrong/there was a glitch”. If I tell Google to resync devices, the Sonos speaker beeps and makes an announcement. But it quickly returns to unresponsive state. Finally after another few minutes of coaxing, it starts giving responses - very slowly, after a long delay. I unplugged it to move the speaker back where it was, and again it took several minutes for GA to come up and return to giving slow responses. And the first spontaneous announcement it made was to repeat the last response it gave before I moved it several minutes earlier!
This is getting to be really frustrating. Something is clearly not working between Sonos and Google Assistant, and Sonos is just not doing anything to address the problems. I’ve wasted an hour I can ill afford on this already today, and screwed up some of my related setup that will have to be redone. My rating of Sonos is rapidly going from zero to minus 100. It sure seems like Google Assistant was not ready for release when Sonos released it, and nothing has been done to in the intervening half year to fix the problems.