My case is this: I am playing from Indonesia.Usually I get ping about 300, but stable. Now, I've been getting lag spikes in GW2 (GW2 only, other games are fine).In short interval, my ping sky-rocketed to 1100, and goes back to 300. It keeps doing that for the entire session. Here is my Pingplotter snapshot:https://www.dropbox.com/s/rkbh96h6lsdyffw/snapshot.PNG?dl=0 The packet loss occured relatively on hops between Amazon IPs. I know it is Amazon IP by checking through http://geoiplookup.net/ip/ I've also submited a ticket of it. Hopefully ArenaNet can use it as reference to fix the issue. Cheers.