Socket problem

Hi sorry if this is in the wrong category. I'm (very) new to c# and i'm having trouble. I can listen on a tcp socket but my router refuses to acknowledge and forward the port. Is there some c# programming trick i'm missing because I've never actually had to manually forward ports on my router ever. I figured if all the other programs I use can auto-forward ports then it must be something wrong with how I'm doing it.

Hope that makes some semblance of sense.

Thanks!

J