However, the above thread is marked as "resolved", so I'm not sure if Spotify staff is still monitoring the replies.
The thing is that the problems has appeared again the last 2 weeks. I thought that making a clear new thread will help everybody to follow the status, adding to the fact that it may be a different problem (different root cause) even if the effects on the users are clearly the same.
In order to sum-up the situation wih Spotify Connect:
Middle of August: First users report problems with Spotify Connect. Music plays for a few seconds, and is then randomly stopped. It seems to impact a lot of receivers (Denon, Marrantz, Pioneer, ...) with different effects depending on the receivers (Network restart on Denons, gaps and pauses on Pioneers, ...).
End of August: Fixed. Not a lot of details on what was changed, but it seemed that Spotify acknowledged that there was a problem on their server, and was solved.
First of all we appreciate your patience while our teams looked into this on our end. We’re marking this as closed as we have updated our partners with all the info we can on our side. Should we hear any other news about this or firmware updates to these devices we will post here.