I will share some simple guide to check if you are connected 100%
1st step is: set all your config to localhost (127.0.0.1) [char_athena, inter_athena, map_athena]
pag naka localhost lahat, no need to port forwarding muna.
pati sa clientinfo.xml dapat 127.0.0.1
pag connected ka at walang error sa server side mo, means 100% config mo.
2nd step. if you think you are ready to public your server.
set all 127.0.0.1 to your WAN IP (www.whatismyip.com)
after mo i set lahat, you need port forwarding na. you need to open your port of your login, character, and map.
login = 6900
char = 6121
map = 5121
you need to open that port para maka connect ang ibang client mo.
share ko setting ng port forwarding ng router. para may idea ka. pasensya na sa language, korean sya. nasa korea kasi server ko
192.168.2.100 = my LAN IP
you need to open the port of your lan ip
192.168.2.100:6900
192.168.2.100:6121
192.168.2.100:5121