Well this is a new one

My wife and I decided to resub for a month to play the MoP remix and to collect all the allied races. But I’m encountering a problem I’ve never encountered before in all my years of WoW.

I keep getting partially disconnected? Desynced? I didn’t even know what to google. From my PoV all communication with the server stops, I cannot use abilities, talk to NPCs, or interact with anything. But to my wife’s PoV I’m still running around and even shows me using AoE abilities, tho to me nothing is happening and the buttons I press never trigger.

I can’t log out, reloading doesn’t help, our PC setup has not changed since the last time we were subbed and I never had this problem. It happens after 10 min or so, when I notice it I can’t do anything else but alt-f4 and try to log back in before I get kicked from the dungeon group. It’s really disrupting my playtime.

What the heck is going on? How do I fix it? Is port forwarding still a thing nowadays?