Hey Damocles, I've already tested your program, great chat program. But to get back at my problem, your program isn't working either on the wan side. So it's a router or firewall problem, but that should not be. Cause I opened port 2300 on the router en also on the firewall. It should run but still I get a black screen if a client try's to enter from the wan network. So hopefully you or someone else know another solution? Thanks anyway,
Molotov.