Forum:Hosting a lan game

I am unable to host a online game or lan game. When people try to join the cant the timer just runs out and the get back to menu i am no computer genuis so i got no idea how to fix this problem. I am using Windos vista Also i have this problem with more games.

can some 1 help me

or add me to msn Gnome_40@hotmail.com and explain would be great