using the class provided in the topic i mentioned in previous comment
i used this command
TelnetCommand("#announce('WELCOME')");
note that i have tested auth on 4501 and works fine
i have sent set game.open_external 1
and its work fine
but still not work on game server although its already connected

[edit]:
now im confused -_-
this command SET game.chaos_drop_rate : 80
work fine just the set command work (not sure if it work)
any help plz
any help plz