An unknown error occured while trying to join the server
 

Only on blue.

Happens quite frequently but now wont let me in at all.

Crashing upon zoning a lot too.

Any ideas?

I'm getting the same thing. Still looking for an answer. Might just play on red if that works.

This same thing happened to me last night. I was in the process of zoning and it just black-screened. Game didn't lock up or anything, as my cursor still moved and I could still hear music, but it's like it just stopped trying to render the new zone.

When I had to hard-close the game and booted it back up, it either failed to load the server list at all, then once it did (3-4 reloads later), it kept giving that "unknown error" as it failed to connect.

A hard reboot and a few failed attempts later, it eventually did reconnect!