I’ve followed the process of adding a new internet radio station to Sonos (AAC streaming). It appears to add ok, but when ‘Play’ is pressed, nothing happens. Other radio stations play fine through TuneIn and other radio services such as myTuner Radio.
I used the advice in https://support.sonos.com/s/article/260?language=en_US, and have added the station using both the Windows client application, and the Android app. Neither will play in Sonos.
The station URL in question (https://edge.iono.fm/xice/fmr_live_high.aac) plays just fine in a web browser.
There are a number of threads that discuss issues with TuneIn in the UK, but the workaround suggested was to add the URL manually - but that doesn’t work for me either.