Another trick that has worked for me in the past is disabling PunkBuster Security. Note, you are not disabling the security on the map server - you're disabling it on your computer. This allows your computer to receive packets that it might be denying - which kicks you off of the server because PB thinks you're using hacks.
While connected to the server that you trust (A {MOB} server no doubt!), enter the console by pressing the Tilda (~) key. Then enter this command: "/pb_security 0"
This will disable your PB security for old updates on the server - and usually fixes the problem. You can turn the security back on by entering 0 instead of 1 in that same command.
Hope that helps some other reader/gamers!
For King and,
Country
QUOTE(Shield @ 05/10/08 5:27pm)

Guys, I need help. I keep getting a communication failure for my pb exe.b driver. I googled it and check PB website, but some of the fixes are a little to adavanced for me. I checked my firewall (McAfee) and the B exe has full access. Im no computer guru, so go easy on me please.
Shield