It seems Tree of Savior SEA (Verena) have blocked both nodes in Singapore by OneAsiaHost. I tried to submit ticket to resolve the issue but no further response from them yet.
Yes, that’s what I think in the first place. I have not tested other SG nodes cause they are not fast enough for me. I am 100% certain both nodes (1&2) from OneAsiaHost in Singapore is blocked though.
Weird… Then could you check How to check the advanced node option working document? I need to check that using 2 mudfish nodes is fine on your environment first.
일단 이 패킷을 봐서는 어떤 부분이 누락되었는지 확인이 되지 않습니다. ㅠ.ㅠ 혹시 Full VPN 모드 상태에서 다시 한번 더 패킷 덤프를 진행하여 보내주실 수 있으신가요?
Hello, I got this data by pinging the full servers list. I’m not sure if that is enough, but hopefully it is. Here is a screencap of all the server locations if this helps for identifying the dump. Thanks!
Thank you for sending the packet dump. However could you confirm that you enabled Full VPN mode while playing the game? When I checked this game dump, I can’t see game related traffics. 
When you get a chance, please send me again.