Many players with very old Windows XP, or just bad copies installed on their PC may find the antihack “getting stuck” at the loading screen.
This is because the client cannot connect to the antihack server. The fix is quite simple, and it is done via the Windows “cmd”.
The command you need to run is: netsh winsock reset
I`m guessing everybody knows how to open the Command Prompt, Go to Start -> Run -> enter “cmd” and press enter.