FileZilla FTP "Failed to retrieve directory listing" Error

When I use FileZilla to connect to my FTP I get an error like this:

Response: 200 PORT command successful. Consider using PASV.
Command: LIST
Error: Connection timed out
Error: Failed to retrieve directory listing

If you have a similar problem with Filezilla, and the problem persists even when the Windows Firewall is disabled, here is what you need to do:

• Open Filezilla, go to Edit -> Settings
• Click on Connection -> FTP: Choose Active
• Click on Connection -> FTP -> Active Mode: Select "Ask your operating system for the external IP address"
• Click on Connection -> FTP -> Passive Mode: Choose Fall Back to Active Mode
• Press OK.

Try connecting to your FTP site once again.