Same issue here. I have a Yamaha RN602 AMP and a separate Yamaha satellite speaker in another room . Both cut out at random. Tried using them separately and linked. Spotify told me it was an isolated incident and they'd heard no instances of it happening elsewhere. Then I found this thread. Times running out for them to fix it before I switch to deezer.
Same problem here. Spotify breaks connection with my Yamaha 483 AV receiver. Music stops playing randomly, after few seconds, minutes.. No matter whether its Android or Windows App. Tried DNS change, WiFi, Rj45. The newest firmare of AV receiver installed. The same with Spotify Apps update.
Windows app: 18.104.22.1688.g758ebd78 Android app: 22.214.171.1242 armV7