L2J Server

Ill explain you situation and i need some advice

in total they are 2 login server 2 gameserver and we want to join only a login server to increase the overall population and of course stay in first server in vote sites.
How i can do this cuz if i try to take accounts from one login server i get lots of error for duplicate username and so on is any method easier or smth like this?

u cant do nothing about duplicates......

Why did you even make 2 loginservers in the first place?
If the versions are the same, use only 1 loginserver, just run gsregister from 1 loginserver and save the hexid into 2nd gameserver's config folder, you don't need to use 2nd loginserver.
And rocoder is right, can't do anything about duplicates, especially if you have thousands of accounts, it's just nightmare

because they want to make a union between 2 servers

i got that...