I created a simple online radio with VB.NET. I placed an Windows Media Player tool and load each url link on it. My issue is that couple of the links don't load

Working -> http://ample-02.radiojar.com/k0hua7u1yk5tv?

Not-working -> http://stream.radiojar.com/enlefko877

is there any difference between them? how do i steam the not working links? When i test them on Chrone, both work normally. On IE the not working url tries to download a streaming file (.partial)

any help?