I've been having connection issues for the past week or so, having lag every minute and disconnecting from the game around every 20 min. This usually happens when I enter an instance (i.e. Dragonsong's Reprise (Ultimate), The Weapon's Refrain (Ultimate)). I've never had this issue before and it just started right before the patch. I think it's a routing issue with my ISP, but I've seen others with connection issues recently.