FTP - 125 Data connection already open

Posted on 2008-11-19
Last Modified: 2013-12-09
I'm using IIS Ftp server the default setting. I get the message "125 Data connection already open" and then stuck. I tried FileZilla Server but same problem. Server IP is 92.X.X.X and client machine IP is 93.X.X.X here is the print screen of server side messages (etherealed)

and on client ftp i get this message.

Connecting to 92.X.X.X on port 21. Attempt 1 of 3...


220 Microsoft FTP Service


USER xxxxxx


331 Password required for xxxxxx.


PASS *************


230 User xxxxxxx logged in.


Server Type: Microsoft NT










211 END




257 "/XXXXXXX" is current directory.




200 Type set to A.




227 Entering Passive Mode (92,X,X,X,19,145)




125 Data connection already open; Transfer starting.

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Question by:GuildOfDruids
    1 Comment
    LVL 13

    Accepted Solution


    Try changing the FTP connection to Active mode.

    IE -- Property

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