Hi,
Does anyone have any experience disconnecting an ESX (not ESXi) host from vcenter 5 and then connecting to an older version of vcenter? I am trying to connect a few hosts back to an instance of vcenter 2.5 after running in a cluster with vcenter 5, but I am having problems. For some reason I get the dreaded, "Failed to install the virtual center agent." I have verified DNS, firewalls, networking, and all of the other usual suspects. I don't see anything in the logs beyond the failed to install agent messages, which all point to uninstall/reinstall the agents manually. Manual intervention does not work. All patches are up to date and have been verified repeatedly.
Does the FDM make additional, or permanent changes to an ESX host? I can't find anything in the VMware documentation that says you cannot go back. At this point I am prepared to reinstall, but if anyone has any suggestions I would like to hear.
Thanks.