Ping problem

everytime i go to km3 ping will go high...even my guildies also hving same issue..its hard to farm locked when i about to reach the 1st boss then my toon will go reverse to the corner below..wasting my luck elix as im doing fast run..anyone also hving same problem??btw my internet connection is good..

in addition...this problem is just same when 2x xp event last week..kt4 really got unstable ping when everyone go there to lvl up their toon

OMG !!! unplayable now !!!!! pls sts do something !!!ping is very unstable

very unstable indeed. Some days ago my ping spiked to 70k.