Sonos is unable to tell me why my 3 groups of 7 speakers (G1:Play 5 R+L+Sub, G2:One SL R+L, G3:Play 1) with Boost in my main 20x30 foot, open-concept floor go out of sync while playing Spotify. Spoke to three tech reps over 2hrs and 45min tonight bc their line kept dropping (1call back of the 4 hang-ups, obviously)
Conclusion: Sonos claims 80mbps fiber-optic Wi-Fi download speed is not enough to play Spotify music on the 7 grouped speakers without interruption. Recommended I call my ISP and get more bandwidth. Of course they will not tell me how much download speed is required, whilst their published documentation says minimum 5mbps. Nor are they able to tell me why this only happens with Spotify premium and not others like TuneIn, Mixcloud or Amazon music.
Any ideas?