FileZilla - 425 Cannot open data connection

Updated: August 1, 2011

Ali Taheri

If you’re trying to connect to an FTP server via FileZilla Active Mode and you see this message: 425 Can’t Open Data Connection, go through the following steps:

  1. If you are using Vista/Windows server 2008, go to Control Panel.
  2. Select Windows Firewall.
  3. Click Change Settings.
  4. Select Exceptions tab at the top.
  5. Click Add Program.
  6. Select File Zilla. (usually "C:\Program Files\FileZilla Server\").
  7. Make sure the box is ticked for FileZilla.
  8. Click Okay.


You can also read Network Configuration for other instructions.


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© 2017 - Ali Sheikh Taheri