I need some help. When I go most of the server I can play about 2mins the I get "Server disconnected for unknown reason."
But there is also server where I can play without having that message. Does someone know what I have to do?

Thanks.

This error is a common 2.55 meessage, press reconnect and it should work again

I THINK those servers's punkbuster version are higher than yours. I THINK you must uptade your punkbuster.

Its also possible that you run Vista, then right click your exe and set it to admin rights OR set et to run in XP compatibility mode, one or the other way fixes the problem.