I can login to US 636 wearing my ghillie suit, but I cannot get into Atlanta 106. As of yesterday both showed to be running the same dayz and arma version. Both servers on HFB.

I had a friend with same problem and we had to update his battleeye .dll. http://www.battleye.com/ Replace the .dll in C:\Users\yourwindowsusername\AppData\Local\ArmA 2 OA\BattlEye (hidden directory you have to show) and Replace the one in your c:\steam\common\arma 2 operation arrowhead\expansion\battleeye.

use anonymous/anonymous for the ftp login.

Exactly what we experience.

Honestly, I had decent performance in cities until the patches 4/13. Maybe it's the host I play on, because I've only played on two different servers hosted by HFBservers.com. It's happening to me and everyone I play with. We get 40-50 FPS outside big cities and 15-20 in Cherno and Elektro.