isa server extended error message ftp


  • ISA Server: extended error message :

    200 Type set to I.
    200 PORT command successful.
    425 Can't build data connection: Connection refused.
    • Moved by Miles Li Thursday, October 21, 2010 1:57 AM (From:General)
    Wednesday, October 20, 2010 2:13 PM


  • Hi Ali,

    This is not an ISA Server error, but an error on the FTP server side.

    • 200 PORT means Active Mode Negociation OK

    So try to connect using passive mode, and see if you always have the error. You can apply this KB to force passive mode with ISA :

    Olivier Detilleux - Service Line Manager | Core Infrastructure Department
    • Marked as answer by Erez Benari Monday, October 25, 2010 10:24 PM
    Thursday, October 21, 2010 9:08 AM