Webradio does work on one Volumio, not on the other

I have two Volumio players (one is running on HiFiBerry AMP2 and another running on HiFiBerry MiniAmp).

With the Volumio running on the AMP2, I can perfectly tune to a self-added webradio (e.g JoeFM) from my country (Belgium). With the MiniAmp Volumio, I cannot listen to that same webradio. I’m just copy/pasting the web URL from the AMP2, so I’m sure there is no typo or whatsoever. Also, the Volumio player just notifies me that it started to play JoeFM, but in fact there is no audio. When I use another webradio, it simply works.

Any idea what could be the issue?