Cannot Update Firmware through LCC FTP

I cannot update the firmware for a Poweredge R820 through the LCC. When I choose FTP update, and use ftp.dell.com, I receive the error SUP-0539, something about missing repositories. When I try downloads.dell.com, I am given an error that claims I need a username and password. Googling this issue yields no results, and no username/password combination for the downloads.dell.com link.

When performing a network test, the machine reaches its Gateway and DNS addresses just fine, but fails to reach the ftp.dell.com domain.

I can provide any information needed.

Thanks,

Jeff