im having the exact same problem (on Phoenix) for 2 days now... whenever im engaged in combat either dungeon or fate i get these Huge lag spikes... everything freezes for 20 seconds or more sometimes it unfreezes and i see everything moves again in like a fast forward motion... and most of the time its too late cuz half of the party is dead if not all... and i get dced alot of times aswell and get the 90000 error hope it gets fixed soon this is frustrating << specially for a healer >.<