I have a similar problem. I've been a premium subscriber for a very long time now and have used my old ZP80 Sonos to stream to my hifi. I have to use the original Sonos 1 app on an Android device. The device and the ZP80 are on the same network (the ZP80 is ethernet and the Android is wireless but the same router). For years now, I've been able to stream for unlimited time on this system. Recently, something weird has happened in that Pandora stops playing after a couple of hours, as if I'm not a premium member anymore. I still have the same stations, etc. but I can't figure out how to prevent this from happening. Pandora appears to disconnect from Sonos after the timeout period since the Sonos app says "cannot connect to Pandora." I can go back to the home screen on the app, then select Pandora again, and it plays fine, but then turns off after a few hours. I've normally been able to play Pandora stations on my system for 8-10 hours per day, but not now. Is there something I should check? I'm baffled. I'm currently testing to see if Pandora will play through my computer for a long time. I have tried different Android devices as well with the same result of timeouts. At least I'm not hearing advertising so I'm in fact still premium, and my account here shows that status, but why Pandora disconnects after a while on the Sonos 1 app is a mystery to me. There's no settings that I can find in the app that would make any difference either. Any suggestions are welcome. Thanks.
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