There seems to be a weird packet loss going on, me and my brother are playing on the same connection, sometimes I'll lag, sometimes he'll lag. We never lag at the same time. My connection is 1Gbps up and 1Gbps down.
Since the reset this week, I've been getting over 5000ms to certain US servers.
It is insane how sometimes its 140ms and the entire dungeon run is fine, or it is over 5000ms and I get delay up to 30 seconds. My group killed Heroic Taloc and I was still lagging on the elevator.
It is unplayable with any server outside of Oceanic realms.