I have multiple podcasts saved in My Sonos from TuneIn. In recent days, I find I am unable to begin those podcasts on my Sonos speakers from an iOS device (iPhone or iPad). I CAN begin them from my Mac, however. Also, if I begin a podcast from the Mac, I am able to add one of the podcasts from My Sonos to the queue using an iOS device and those play fine in turn. Music streams from my Mac well with an occasional dropout.
My Mac and iOS devices are up-to-date with their soft/firmware. My Sonos speakers (three OneSLs and four Play:1s) are also up to date. (However, I suspect the problems appeared after the latest Sonos updates.) It doesn’t matter whether I connect my speakers directly to my Wi-Fi or use SonosNet, the problem is identical.
This setup has worked well for me for three years.
I have talked with the kind people at Sonos on the phone, but to no avail. Your suggestions are most welcome.