Enable Multiplayer Type Browser to Play the Game

I am trying to play American Army 3, but the punkbuster keeps on kicking me from the server. AA3 is installed on my machine, which I originally did through Steam. All seemed to work fine. I also installed punkbuster and started the game. But then it kicked me off and said I needed to enable multiplayer type browser in order to play the game. The problem is that I already have a multiplayer browser but it still kicks me off the AA3. My firewall also allows it to work. So I am clueless on this issue. At the moment it is not even letting the game start. So I am left with no game and no idea about what is happening to my computer. Any help is great. Bye.
