Yesterday I switched from from my linux-based roon server to an Intel NUC with ROCK installed.
The install was no problem and restoring my backup of roon worked perfectly. Everything seemed to be working right until I tried a couple of radio stations. These stations stream mp3 files and when I tried to play the station I got a “transport: failed to load media” error.
I believe the problem is related to the ffmpeg codec. I tried the codec suggested when you click on the “missing codec” link. I still had the problem. I then tried several other versions of the codec maintained at the website, and didn’t have any luck.
Can you please post a screenshot of where you dropped the ffmpeg file and the source you got it from?
These instructions should still be valid, and you would need to “unzip” the archive first using 7zip so that a single ffmpeg file is available and then place it in your ROCK Data Directory/Codecs folder.
I would reboot your ROCK after placing the file there as well and verify that the message does not appear in the WebUI. Please let me know if that helps!