Same on Leviathan. Walked away for a while, came back to a 90k error and when I tried to relog I was put in a queue. Thought it was odd, started HM Ifrit and everyone got hit by a giant lag spike. Few people got kicked off. In the middle of the fight, I got kicked off with another 90k error. Bleh!

We won though cause the healers were awesomesauce, so I wont complain too much :P It just sucked.