Sonos 5 is gone from Airplay listing on my iPad Air. No new router, no new password, no software updates on iOS, no device moved around, no new devices added to the network. Turn router on and off; did that. Unplug devices: did that. Tried to reset the speaker with the old and the new Sonos app, but one can't find any devices and the other keeps saying there's no internet. So the Sonos is stuck blinking green and I can't get anything to see it. This setup has been working perfectly for several years until yesterday.