Hello. Here I am again... pulling my hair out.
I have a multi site install. I have a site utilizing domain mapping within mainstemsports.com with it's domain mapped it is thedeaddrift.com.
I uploaded a video to the media library via FTP and then used http://wordpress.org/extend/plugins/add-from-server/ plugin to add the very large video file to the media gallery.
I then attempted to add a link to that file for downloading to a protected page within my site and I placed it in a protected download group that is supposed to rename itself to protect the url and NOTHING.
I've been searching around all over online and can't find any documentation on dealing with these issues.
I'm happy to provide any additional info.