Huge ping spikes in WvW

I usually play on 180-200 ping slightly increasing in larger fights.But in the last weeks when a large blob shows up my ping goes up to 700-6k and people start blinking on my screen and it only stops when i port back.This doesnt happen in every large fight, also it doesnt happen in large PvE events.I dont think my internet is the issue here since it only happens in WvW, especifically when a enemy blob start casting spells.I experienced some lags in the past, but nothing game breaking like this.

if your ISP knows how to mitigate "EXTRA PACKETS" OVERWHELMING your GW2 CLIENT, just give them a call.

@"IWAY.8231" said:if your ISP knows how to mitigate "EXTRA PACKETS" OVERWHELMING your GW2 CLIENT, just give them a call.

If it is the case, shouldnt i be lagging in large PvE events as well?

@spectrito.8513 said:

@"IWAY.8231" said:if your ISP knows how to mitigate "EXTRA PACKETS" OVERWHELMING your GW2 CLIENT, just give them a call.

if you read my response to you carefully, you'll know what's happening to you in WvWvW.

no lag in PvE? no lag in Events with lots of Players in PvE? no lag in PvP? No lag in Towns/outposts?

AND Super Lag In WvWvW?

what's wrong?