Seconded.

I was playing in a dungeon, got kicked out with a 9k.

I can log in with the launcher. I can open the actual client. Once I hit start, and it tries to connect to a data center, it freezes for a second then comes up with the error code saying there are problems with the lobby server.

Changing data center does not work. Have restarted my computer etc.

Just for clarification, I cannot get to character selection.