Occasionally I'll see this suggested for different problems that arise for people. My situation is that the dungeon finder has been glitched for me, for 5 days now. I've cued as tank, heals and dps, with and without people in my group as well as all different hours of the day or night. The cue sticks and trying to leave the cue does nothing, I've even logged out and back in to discover that I'm still cued for a dungeon.