This happened to me as well, I was inside Dzemael Darkhold in a 4 person Duty finder party. We were at the first boss and I got the 90000 error. My character data is not updated as I gained a level while I was inside and it is showing that I did not gain a level. The only problem is that I can't ask anyone to check if I am still listed as online as no one I know can login either. Anytime I get into a queue it automatically disconnects me with either error 1017 or 2002. The time is also around the same time as everyone else here except I am on world Ultros.