It’s been a week already since I encountered this issue. The ping is incredibly high and make the game unplayable with lots of warping. The weird thing is, the first minute or so after login and choosing character the ping is quite stable, then it goes up and down so frequently. I’ve tried everything from the internet and still no solution until now.
The question is, is this came from the server? Some of my mates has this similar problem but a lot of them don’t.