WTFast

Get WTFast™, The Gamers Private Network (GPN)™, a network built just for MMO Gamers.
The WTFast GPN™ delivers an optimal game connection, improving your game speed and reducing disconnects, response deviation and lag. The WTFast GPN™ works with virtually all MMO games and ensures you ALWAYS have an optimal gaming connection and experience.

With WTFast you can hide your IP address to by pass online games which that games have an IP Block like MMORPG Ragnarok Online 2 : Legend of the Second SEA Server.

Download link :
http://www.wtfast.com/client/WTFastSetup.2.1.1.exe


Source : http://www.wtfast.com/