I've gotten this twice so far, both times in Ul'Dah just running around. I've also noticed that it takes forever for NPCs to show up. I usually have to stand around for a good 30 seconds or so for them to appear. Quite frustrating, especially since being kicked out means it's gonna take forever for me to get back in again. I just went to bed after the 2nd time, was NOT in the mood to spam the login server. Please fix this ASAP, SE.