Best answer by Airgetlam
The issue you've been experiencing is a problem with the speakers being able to reach the servers. Music within your network was working fine (on your phone). But playing Apple Music and TuneIn requires your speakers to reach outside of your local network through your router to the outside world. They weren't able to do that. Most often, that points to one of two things, either a borked DNS on the router, or duplicate IP address issue keeping your speaker(s) from staying attached to your router. Both of these situations would be resolved by the refresh as indicated.