Was towards the end of the first floor of Alex (normal), when suddenly everything froze. I thought it was just lag until I got a black screen, then a message saying that communication with the server was lost.
When I tried to log back in after it took me back to the very first screen, there was a long loading screen, and before I was even connected to the server (Gilgamesh), I got the same message and the game completely exited out.
I haven't tried to log in again yet; will try in a couple minutes, but just in case there's some known issue (or unknown issue) going on with the Gilgamesh server, I figured I'd report it.
Hopefully, I'm in the right thread/forum. ^^;;