Every time I try to enter the Celes system with Pete (my Federation character), I get disconnected from the server halfway through loading. If I try to log in with Pete afterwards, it always fails to connect to the game, even after closing the game client completely and re-launching. The workaround I have is to log in with my Klingon character after a disconnect, then back off. This seems to fix Pete, just as long as I don't try to get into Celes again.
As I have two missions to do there, this is a little annoying.