I have a problem opening Crossfire.

After downloading the latest version is downloaded and opened the game updates and game works perfectly and after the close of the game and open again descent seems to me the box.http://im20.gulfup.com/2012-06-28/1340831483721.png
This problem occurs on all computers in my house.
My friend came along with your laptop and working on the game perfectly at home with the knowledge that the Internet company in the status different from the existing Internet company in my house and when you open the game occurred with the same problem that spoke to me.
In my country, Syria is blocking a lot of web sites and I spoke with the company regarding this problem and they told me to give them IP connection for the game Crossfire to help me in decoding the ban on IP.
I want a solution to this problem in any way.
I am addicted Crossfire please help me.
I'm sorry for my bad English.