I'm experiencing this as well. Managed to play for about an hour... then got the 90k error. When I tried to log back in, I got the 3102 error a couple of times... now I can't even bring up the server list. Been getting that for the last 15-20 minutes.

My confidence in S-E's ability to run a large-scale MMO (read: more than 200k concurrent connections to the servers at any given time) is starting to deteriorate...