Hi ​@Foobar 

Welcome to the Sonos Community!

Sorry to hear of this issue you are having with adding Google Assistant to your Sonos speaker(s).

There was a brief outage, which has now been resolved. Please try again.

If you still see an error, please reboot your phone, speaker and router - reboot the router by switching it off for at least 30 seconds.

if you still see the same error afterwards, I recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.

I hope this helps.

Did it solve your problem ​@Foobar ?
I have the same issue...

Hi ​@Twiggle 

There does appear to be an on-going issue with users being unable to connect their Sonos systems and Google Assistant/Home.

There’s a larger thread here:

We appreciate your patience while we look into this issue.

I hope this helps.

Same problem here last couple of days. It’s obviously a bigger issue and hope it gets sorted out soon. I don’t get why this isn’t reported on centrally so that everyone didn’t have to post in forums to figure issues out. Support can’t won’t be able to sort this one out for you either. I spent 1 hour in a support talk yesterday trying everything possible out. That support person than got some answers from som higher up support technician who told us that there was a central issue and a lot of same reports incoming. Why not tell everyone centrally about this ongoing issue so that we don’t have to spend hours in support? 

When can we expect this issue to be fixed? 

Hi ​@emlymrtn 

We can’t give out estimates - sorry.

I bought the Sonos Arc soundbar recently, with a subwoofer and 2 rear speakers to create a surround system in my living room and I am having the same issues.  I hope to there is a resolution soon. I had a Klipsch Cinema 1200 surround sound system I replaced and setting it up Google Home and Assistant was seamless and took me literally less than a minute. Sonos should work with Google to get this resolved asap… Just my 2 cents.