On a Windows Vista-based computer, you use an FTP client to connect to a remote FTP server that requires a user name and a password to log on. When you use some FTP commands, such as dir, ls, and get, you may receive an error message after a long pause.

Note: The IPsec policies on the Windows Vista-based computer require IPsec on incoming connections. However, the policies do not allow for IPsec on outgoing connections to the remote server.

For example, when you use the ls command, you may receive an error message that resembles the following:

200 PORT command successful.
150 Opening ASCII mode data connection for file list.
Aborting any active data connections…
425 Can’t open data connection.
Connection closed by remote host.