Delay joining servers and channels and lagg after.

As of the last patch i have been getting major delays in crossfire and only crossfire, it takes me at least 5 mins to join a server and then another 5 mins to join a channel or room. It just freezes up and takes a while before entering. And i would get kicked saying corrupted file, but i restore my computer to factory default and reinstall crossfire and yet it still keeps happening, and since im not good with computers i thought maybe someone could help me thanks.