Need help for setting up routing path to Lost Ark RU

as the image show, my connection to RU nodes has been really bad for 2 days, i can’t even load the game now. i’m from vietnam

Is it still same? If you’re having high packet loss rate to mudfish nodes, then you should check your ISP first.

i contacted with my ISP (Viettel) in Tuesday. they checked my internet connection and said everything was normal but i still got high ping when connected to RU nodes (500+). Today thing got a liitle better but still at ~300 which is about 100ms higher than before

Weird. To analyze this issue more, I recommend to use WinMTR or PingPlotter. For details please check How to use WinMTR link. However please test again to IP because it’s one of game server.