any particular reason why you have choosen for portmagic as Firewall / security program ?
First of, welcome to the forum.
Could you bescribe your network a bit more, number of PC's, any switches or routers in it and the type of internet conenction you have.
Which games and programs have you tried, both those who worked and those who didn't work.
First guess, you need incomming ports to be forwarded or opened on your gaming PC. Your firewall probably blocks them.. .
