Plesk Backup Personal FTP repository not working

[brainforge]

Can ftp to the FTP server from the command line without any problem.
get / put / ls etc all work.

Configure Plesk Backup Personal FTP repository with same server / username / password.

Get the following messages in Plesk:
Warning: Unable to display the list of backups. Please check the personal FTP repository settings.

When I attempt an FTP backup I get:
The backup was not created. Download the log file View the log Close this message
Can't upload file 'backup_info_1406281533.xml' to ftp. Error code: 1

Any suggestions?

 

[IgorG]

Check this article - http://kb.parallels.com/120808

 

[brainforge]

Needed to set passive mode.