I'm using a PC Laptop with XP Home Edition Service pack 3 connected through 
WLAN via a dual band Apple Time Capsule. The problem is this;

When I try to view web-TV or web-radio through websites that uses Windows 
Media Player embedded I can't connect to the selected media. It will buffer a 
couple of per cent but then completely stop. This doesn't happen when I 
connect directly to the broadbands wall socket and never happened with my old 
Belking router, besides when I view it through Flash Player it works like a 
charm. So I am pretty sure that the Time Capsule is to blame. 

I have called Apple support but they couldn't help me, because they had 
never heard of a similar problem happening.

My own thinking is that is has to be a way to solve this, maybe by opening 
the right ports on my Time Capsule router. The problem is I have tried to 
open a lot of different ports and maybe not the right ones. Besides there is 
little info available on how to open ports in the Time Capsule router. So I 
am not sure that I am doing it the right way.

So the questions are;

1. Have anyone experienced the same problem? How did you solve it?
2. What ports control the Windows Media Player?
3. How do I set this up on my Time Capsule?

Any help on this matter would be greatly appreciated!
/Andreas