-Make sure no running illegal processes during game .
-Disable ur Antivirus or Game mode it .
-Make crossfire allow to go throw firewall : Control Panel\All Control Panel Items\Windows Firewall\Allowed Programs
If problem still ON:
Fully Uninstall ur Game
How: Uninstall normally from ur control Panel =>Delete ur z8games folder C:\Program Files\Z8Games =>Run CClenear HERE =>then RESTART ur system.
Install the game again .