I experienced sort of the same problem and wanted to share what solved it for me after a lot of searching, reading and trying.
My problem was different from that of the OP: I couldn't add the Vera Concierge Smart Home account to Google Home ("Couldn't update the setting. Check your connection" error) and it also didn't add anything. I could do this again and again with the same result.
Then I noticed that after I unlinked my Vera Controller from my Google Account from the Vera Concierge Cloud Account page, I didn't get the error. In fact Google Home said it had succesfully added the account. Only it didn't ... I figured that it didn't because there were no devices. So the problem had to be with the link to the Vera. So I readded the Vera Controller and went on searching.
Another hint was that the Connectivity test button on the Vera Concierge Cloud Account page didn't give a success message. In fact, it just showed an empty popup. I didn't know what to think of that, but now I've learned that it means that the connection failed
Since the connectivity tests the connection via the Vera Cloud server, I went to home.getvera.com and noticed that it said "controller offline". Really weird, because it wasn't. (Once there I removed my old Vera Lite, I don't think this is what resolved it, although it does prevent some error messages in the Concierge log.)
Since the problem was now purely Vera, I decided to do the firmware upgrade it had been asking for.
And that solved it! Really weird tbh, because why on earth is this (trivial) upgrade mandatory for remote access.... But the connection from home.getvera.com went green, the Connectivity button now says: succesfull connectivity to your Vera and your Local Concierge Server and the Vera Concierge Smart Home account could succesfully be added.
Hopefully any of this will help someone to spend less time debugging.
