• The most common way to solve the problem is to change the transport mode to active mode, but this method is likely to return the same error.

  • Finally, if you find a way to do this, open FileZilla and select Encrypt to: Use plain FTP only (not secure) in the general area on the right. Connect again.

  • However, there may be a connection success, but failed to read the directory, this reason is that you forgot to change the transmission mode to active, should be changed to the default mode again.