For the past few weeks, I've been having issues with all my Sonos speakers when using Spotify Connect.
For example, if I've previously used another service like Apple Music or Amazon Music and then open the Spotify app and connect to a speaker, nothing plays.
I have to start Spotify playback from the Sonos app first, and only then can I connect via Spotify Connect from the Spotify app.
This has been happening for about two weeks now.
It's really annoying because if you start directly from the Spotify app, there's no way to hear anything—it’s as if the speaker doesn’t activate. But in Spotify appears like the song is playing.
Thanks!
Edit: In Reddit there are people with the same problem https://www.reddit.com/r/sonos/comments/1nobv3y/anyone_else_been_having_problems_with_spotify/