I play Xbox One. Trying to play today was pretty painful. I was checking my internet and it was fine, 90MB download 50MB upload on console connection with 5ms latency. Yet the game was atrociously laggy in PVE, even when I was trying to do the main quest story lines (so within private instances).

Every time I loaded into a new room/dungeon, the npcs would be invisible for anywhere between 10 and 30 seconds. Even mobs would be invisible for a while as they were attacking me, and I would just have to run around healing myself for 30 seconds until I could actually see them and fight back. I was kicked to dashboard 3 times. Audio would cut in and out. And there were a few times where entire walls of huge buildings, like in mournhold, would be invisible, and I could even walk through a few doors without even having to press A. I've played a lot of games in my life, but I've never played a game that was this far after release, and yet this buggy and broken.

I tried restarting the game client, xbox hard reset, replacing ethernet wires, and nothing worked. I honestly had to get off because I didn't want to end the main quest line (i'm about to face molag bal) with such ridiculous lag....which really sucked because I was enjoying it a lot.