To debug this, you need to use a suitable web browser such as Firefox / Chrome / Microsoft Edge (Note: Definitely not Safari.) on a computer or smartphone. Open the Jazz Groove account settings page and sign in to your Premium account, go to Audio Setting. Choose the FLAC quality, a station you’re having problem with, and Stream URL (not PLS). Copy it to a new browser tab and play it using the browser. If you can reproduce the problematic playback with the computer or smartphone, copy the URL from the browser (it is no longer the same as the one on the Jazz Groove account page because it has already redirected you to a new regional server - you need the final link) to an e-mail.
If you did this procedure correctly, you’ll get a URL in this format:
https://audio-edge-xxxxxxx.radiomast.io/xxxxxxxx?token=xxxxxx
Note that if you get a URL that starts with http://streams.xxxxxx you got the wrong URL that does not help with debgging. This happens when you use an unsuitable web browser such as Safari, or if you have not followed the procedure completely, or you did not copy the final URL again.
This URL is the result (after server redirection from the Stream URL (not PLS)) seen from a suitable browser on a suitable platform. I think Firefox on Windows, Firefox on Android, Microsoft Edge on Windows, or Chrome on Windows or Mac OS should work. Safari browser does not work.
Repeat this procedure for every stream that does not play normally. If you are having problems with all five streams, you need to have five different URL in the correct format in the e-mail.
You can then send these links to Jazz Groove support, they’ll forward it to the streaming service provider and fix the problematic regional server.
Alternatives:
- If you happen to have a streamer with native Jazz Groove FLAC support like Lumin, you can try it to confirm that you are indeed having a regional server problem with the service, instead of something else in Roon causing this.
- You may try using a VPN on the Roon Core computer (if not using ROCK or Nucleus) to Canada (where I think the streaming provider company is) or USA, then restart Roon.