Already answerd here:
http://forum.ragezone.com/f588/howto-complete-guide-setup-aion-902619/#post7408803
look 4 point
[4] Setting up your client to play on your server
he had to look into the l10n folder, in there is another folder called
DEU or
ENG or
FRA or
ENU or
RUS or ......
then he had to edit his start file or create one and insert into it:
start bin32\aion.bin -ip:127.0.0.1 -port:2106 -cc:
Y -lang:
XXX -noweb -nokicks -ncg -noauthgg -ls -charnamemenu -ingameshop -DEVMODE "con_disable_console 0" -DEVMODE "g_chatlog 1" -DEVMODE "g_auto_disconnect 0"
if he is using
NA client Y = 1
If he is using
EU client Y = 2
XXX stands for the folder name, he found in
l10n
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Edited question in the main post to add this ^^