i cant enter in character selection

why is that i can't enter on my server when im trying to connect in a different computer... after i select server nothing happens . . . it does'nt show any sprite error or any msg . . but when i try to connect by offline i can connect .. i can't only connect when im trying to make it online it . . . what seems to be the problem . . . anyone who can help me? thanks . . .

im using TXT version of eathena . . not SQL btw

Ports open?
And what msg shows the cmds?
Updated client? Diffed exe?

msg show on cmds after i select server Closed connection from "124.217.**.**"
im using KRO client

The problem could possibly your packet version.

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