HELP!! epic lan being ruined!!

[luixmania]

This is the problem:
I cant detect the login on any of the lan computers (we dont have internet i dont know if that is the problem)
i can make the server on the main computer and i can play on that computer!
i need a help to know if i need to change that file on system32 or something else
the lan is perfect no problems with conection (we play many games there)

Any ideas?

[azuul]

simply dont play on the same machine where you run l2j.