Failed to Connect host server

when this error come?

ps
-turn of virus scan like takari sayed
-download gamebooster or something

Have the same problem in CF Private ;(

and i allready reinstalled, dloaded gamebooster (premium!) ...

still get host errors.

Try to do this:
Try to turn off you'r Anti-virus/Firewall.
Try to turn off you'r Internet connection for 5 mins and open you'r connection.
Try to delete/turn off all of you'r crossfire hacks.
Or try to run it as administrator.

Try to delete every hack/injector of you'r computer. Also 1 post above i say'd every solution that need to be work.
Try to portworward you'r router.
www.portforward.com and add some of the tcips of crossfire xtrap and hgwc.
When i get home i post it.