Because i see some people,who they don't understand what to do,i will say what u must do!
Open WP406F,then run L2walker.Choose L2walker.exe 10.6.4 from WP406F and go under token protection.U will see an arrow,press it.It will write L2gold/L2Forever.Choose it!Now press the "sun" at the left.If it doesn't work,download hosts and install them :D