I recently noticed I’m getting “Networking error: subscriptions failed” for my Sonos integration, and it is falling back to polling.
“Sonos device at xxx.xxx.xxx.xxx cannot reach Home Assistant at xxx.xxx.xxx.xxx:1400”. I can telnet to port 1400 on the HA vm. the vm and the speaker are on the same subnet. Everything Sonos-ish works otherwise. No idea what to look at since 1400 is definitely available.
suggestions on where to start?