Hi there,
For a couple of months now I started having high ping during daytime, but at night, or around after 7 PM GMT it doesn’t lag at all.
This high ms only shows up during combat inside of raids or any type of instance (arena, bg, etc), I can also type in the chat and the message goes through without any delay.
I’ve bought a new router, reinstalled the game, OS, but nothing seems to help with this issue…I’d also like to point out that this issue is only present in WoW, no other games.