Hi All
After an upgrade of vcenter server from 4.1 to 5.1.0b, my 4.1 hosts are now disconnected in vcenter server.
When I click on the summary tab on one of the hosts I get, "Cannot synchronize host ..., Disconnected from host. Reason: Agent Upgrade"
I have tried to remove and reattach my hosts - they reattached for about 5 seconds then automatically remove.
I have checked that AgentUpgrade.autoUpgradeAgents is set to true (it already was)
The Managed IP Address in administration>runtime settings is correctly set to the vCenter server
I have restarted the Management Agents on the 4.1 hosts
My upgrade went smoothly with no errors, except the warning regarding the older version of update manager, which I have upgraded to 5.1
I am running vCenter on Windows 2008R2 with express SQL (64-Bit 2005), I have 2 hosts and about 12 VM's. I have Essentials Plus licencing.
Where should I start looking next?