Hi all,
I posted the solution over in the other similar thread that Yong-C referenced: en.community.dell.com/.../20353722.aspx
Good luck!
PS: The "dialog" (there's actually two) that Rob-C is talking about looks like this below! This is NOT mentioned in the Dell Repository Manager documentation and I think Dell should really update this for clarity! Because if you don't see it, you'll get a bunch of silent errors in C:\Users\<username>\AppData\Local\RepositoryManager\Log\DellRepositoryManager_Server.svclog like Root CA Untrusted for... (as I mentioned in the other thread) which are your only clues! ;(