Stuck On The Quest "out Of My Mind"

I got through Ariodo's puzzle and after that he advised me to "enter through a large door". The door that supposedly should have opened didn't, and now i'm stuck in the puzzle room. I tried doing the quest over but the door doesn't open. I would greatly appreciate all help and advice you people can give me because i'm anxious to get this quest done and move on to new adventures.

 

/kill ---> switch servers ---> initiate puzzle ---> go through door
(If all is unsuccessful) ---> Repeat