Why wont my FTP server work ? :(

[something_totally_different]

im using easy ftp server and it works fine if you try to log in using the local ip but if i use our propper external ip and try to log in from a different pc, it never manages to log in and the FTP server logs register no activity.

for the sake of trying to diagnose the problem, ive put my router in the DMZ, and have turned winblows firewall off but still i cant get in???


any clues ?