most of radios works, some don't

Hello all,

listening radios using my enigma2 box running OpenPli 9.1 is important for me. Most of internet radios i like are ok. I'm unable to listen to the following very good station :

Belly Uo 4Blues : http://energy15.egihosting.com:5691/;

Of course using a laptop it runs well !

Any idea or help would be greatly appreciated.

Cheers !