Disconnect from host 0-3

I apologize for my bad English. I have encountered this problem for about 1 month. it's driving me crazy, I can not play ... I'll give you some examples, if I play games that last more than 10 minutes, I'm almost certain it gives me this problem. there is the possibility that if I do 2 games do not give me the error, the 3 gives me the error ... I did everything that the support wrote me, updated the drivers, antivirus, firewall, uninstalled, restarted. reset .... none of this has had effect! many Italians and Egyptians have this problem of mine ... now I want to understand ... is it actually my problem or crossfire in general? because I'm not the only one! if there is anyone who has finally solved this damn mistake, please, help me!