Unable to upload files over SSL FTP using FileZilla

Discussion in 'FTP' started by erniethomason, Apr 15, 2018.

  1. Using FileZilla (latest version), if I do NOT use SSL, things work fine.

    If I use SSL, I can connect, view and delete, but I can't copy new files to the server. If I try to copy to server, it looks like it tries about 3 times then gives up. The messages at the top show:

    Response: 150 Opening ASCII mode data connection.
    Response: 550 The supplied message is incomplete. The signature was not verified.
    Error: File transfer failed

    My connection information looks like:
    Protocol: FTP
    Encryption: Require explicit FTP over TLS

    Is there a way I can upload files with FileZilla and SSL?
  2. Elshadriel

    Elshadriel Winhost Staff

    Yes. Use an older version of FileZilla (no later than There's a problem with newer versions of FileZilla and how they connect to IIS using TLS. Or use another FTP client like CoreFTP.
  3. OK, thanks for the reply and info!
  4. searching....thanks :D

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