Customer Support

I was having the same problem.  Try changing the Passive Transfer
checkbox on the advanced tab of the connection.  If it's checked,
uncheck it and vice versa.  It worked for me.

If you are using Windows command line ftp, there is no PASV or Passive
command. However, you can send arbitrary commands to the server by using
the 'literal' command.

In my experiments, a unix/linux server would respond favorably to a
'PASV ON" command (preceded by the 'literal' command). A Microsoft FTP
server didn't like the extra argument, but was happy with simply 'PASV'.

e.g.,

ftp> literal PASV