Are you Vietnamese ? I advise you don't play 9Dragons VN, because in this game, too much gamer hack, not fair when you grinding too hard a long time to up 1 level, other gamer use hack can up 2 - 3 level in the same time. I'm play 9Dragons VN along time, now because many gamer hack, I don't like. I go to play 9Dragons US.
But you want to play 9Dragons VN when VN IP block, I think you can search by Google program Fake IP or use proxy server to play, but it's lagging .
When I play 9Dragons US before, I have same problem like you, I use proxy server to play.