Same here. I hadn't played in a while and I wanted to see the updates, but it won't let me login. I thought the patch hadn't installed right, so I wiped the game from my computer, reinstalled with all new files, untouched, and it has the same problem still.
I really want to play again, but it stays in the constant loop of "Request Accepted... Sending login"
I've rebooted several times and everything else was switched off.