When I try to connecting to a FTP server, WinSCP make a connection, start the session and when it try to read the remote directory an error happen.
Error: Error listing directory '/'. Could not retrieve directory listing Command not implemented
It is the same with GUI or Powershell script.
It happens for two servers but works with a third.
It works with FileZilla :-) with all the servers.
I use WinSCP 5.13.8172 on Windows 7 Pro SP1.