iPad Sonos app incorrectly says: “Your Apple Music account access has expired” and refuses to connect.
Running Apple Music directly on iPad and choosing ERA 100 speaker, there is a delay of several seconds, and then play button goes back to stop and it refuses to play on that device. Will play on other AirPlay devices.
Sonos ERA 100 does connect and play properly from MacBook Air Apple Music.
Bandcamp does connect and play from the iPad Sonos app..
( Latest iOS 18.0 on iPad and MacOS Sequoia 15.0 on MacBook and Apple Music subscription current and working despite what Sonos app says. )