I suggest this, for the time being: select a server and hit "serverinfo". If the date in the version is "August 5th", that is an illegal copy of the game and you won't be able to connect to it. Find one that doesn't have that date in the version number and you should be able to connect to that server. I know this is a pain in the ass right now, but we're working on it...
It's not your fault and we thank you for actually representing your product. I can't tell you how many times I've needed to hear from some *cough* BF1942 *cough* *cough* *cough*