Dude, download RIS. Rakion International = RIS. Wottah.
Other clients are RKS, connects to the same server as RIS but everything is written in korean. Tho, the RKS version is way less crashy so if you can sacrafice english buttons for a better gameplay then this is suggested.
Then theres RLS (Rakion Latin) and RSS (Rakion Sea), but theyre both located far away so youll have a nice average MS for 800 while playing on one of those.
If youre from EU, use RIS or RKS for a less crashy game but korean buttoonnnzzz..... Khai.