I experiance the same problem as NoxNebula.

ISP:UPC(Austria, Vienna)

It started 2 days ago and everytime i try doing a dungeon the game is going slowmode. It updates positioning and HP bars every 5 seconds and makes it unplayable as healer. I cant progress, and that is pretty frustrating. Everthing else is working fine (other games, connection checks, internet services, antivirus,..)

Would be glad if someone had a solution.