Stuck on "Wait for Host"

[Gna Morg 10]

Hello i have a big Problem when i want to connect to Server except a very few.

The problem is exactly the same as it mentioned here in this old ArmA 1 thread.

http://forums.bistudio.com/showthread.php?t=68267

I have ARMA 2 1.03 latest beta patch on it (22.05.09) and tryed some things as firewall of,some different Graphic drivers, reinstall ARMA 2, scan my system with spybot, antivir, hijackthis and remove every finding but nothing really works.

Last thing i would do is a complete reinstall of my OS but i hope i can fix it with a other tweak.

So pls help me because i primary play MP.