I see this is a recurring and persistent issue here, so joining the chorus of users who are having issues streaming SiriusXM radio via my Sonos system. I can usually connect and SiriusXM will play for an hour (if I’m lucky; it often cuts out much sooner) before the stream drops. Once the stream dies I get the “song not encoded correctly” error which makes no sense. I can usually restart the stream after waiting for 5–10 minutes.
I listen via various Sonos speakers that I own, primarily a Play:1 in my office, or a group of speakers that includes a Sonos One, Play:3, Move, and Play:1. This ONLY happens with Sirius. None of my other streaming radio services (Apple Music, Amazon Music, Sonos Radio, TuneIn, Bandcamp) experience this issue. My 1gb internet connection is stable and strong. There is no obvious wireless interference from a cordless phone, TV remotes, etc.
I’m confident that this isn’t a hardware or connectivity issue on my end. Is this a Sonos problem? A SiriusXM problem?