I have been using the same set up with my soundcard and headset which works perfectly fine on other programs , which I tested by plugging in another headset to find the problem was still an issue. The issue is that my microphone randomly cuts out after a random period of time during a skype call . This usually happens whilst playing a game and having skype running in the background , this has happened with more than one game. Until opening the game my skype works perfectly. I am on windows 7, any help ?
I'm pretty sure it's not a hardware issue , but all will be revealed with an upgrade soon.
try disabling uPnP