Thank you for your post. You are confirming what I am guessing since a while: support is no longer available.
I ran only recently into same troubles with several radio stations. I could no longer find them in tunein 😢. In order to avoid ending-up with "samsung junk in my house", I resolved the problem as follows💡:
The problem of missing radio stations is in my case is not caused by the multiroom app itself, but by
- tunein, who does no longer find my preferred radio stations, as it misses to update the appropriate links to these stations, who unfortunately changed the addresses, but luckily the new ones are published on their respective websites; and
- the radio station, at least in one of my cases, who has changed its policy and no longer provides a static streaming address, but only a dynamicly assigned ones. I assume they use this for tracking its listeners. But luckely once the address is created, one can use it over and over again (works for almost three months now).
💡I solved both problems by installing a MinimServer on my server hardware. MinimServer reportingly works well with verious hardware plattforms e.g. NAS from Synology, Qnap ... The MinimServer is allowing to create playlists, which can hold the missing radio station links. The update streaming links of my prefered radio stations are now stored in my playlist (***.m3u text file). I can now easily select the MinimServer icon appearing in the multiroom app and then select my radio station from my playlist. The multiroom app connects then the selected radio station to my samsung speakers R3, R5 or soundbar HW-K850 💡.
All works fine again 😀 and I could extend the life of my speakers🎉 at least for a while 🤔.
For more information on radio streaming with the MinimServer check-out this https://minimradio.com.
Hint: In case you need to get hold of a "dynamically assigned" streaming address for your radio station, you can find it with the help of your browser's development mode.
