Hello Mtexter,   The following article provides information about the Lifecycle Controller User Interfaces (UI) failing to download files from Dell EMC's online repositories and provide the options now available: [URL]  
ftp.dell.com isn't working for updating poweredge servers anymore.  Attempting to navigate to it on a browser (or downloads.dell.com) redirects to dell.com/support.  We update all of our PowerEdges via ftp, and have used 143.166.135.76 (found via nslookup) instead of a URL before with success, but not this time.  Is something going wrong on Dell's end, or have they pulled this down?
Dell FTP not working