Moved from Community Help to Business > ePO for better support - Moderator
You can't register a newer version of ePO with an older version, only the other way round as you've discovered.
I believe what you need may be the ePO 5 Upgrade Compatibility utility included with the ePO 5 installer.
Details on its use are in chapter 4 of the ePO 5.1 installation guide 'Upgrading ePolicy Orchestrator software'
Thanks Hth, I appreciate the reply.
After reading your reply, I submitted a ticket into McAfee, asking for verification, and they replied with the following:
"The ePO 5.1.1 server will have to be registered as a 4.6 server, on the 4.6.8 server, because version 5.1 did not exist at the time ePO 4.6 was released, so there is not an option to select that version. This will not create any issues."
I haven't tried it, yet, but will get around to it in the AM.