Ping rates all over the place(also higher than usual on average), and as of last night travelling to other players in your group in the same zone frequently doesn't work at all. You get the animation and the loading screen, but you don't go anywhere. For reference it's not just me, a lot of people in my guild last night were having this same problem during one of our zone clears. Multiple disconnections from battlegrounds. Battleground performance the past couple hours has been awful. People jumping all over the place, ability delays.
I've already power cycled everything. I've done tracert's to all the usual suspects. My connection is fine. My ISP is fine. Whatever is causing this it's not on my end.