If the NSX Controller VM was powered off from vCenter Server or a controller VM was deleted from the vCenter Server, the Status column of the Installation and Upgrade > Management page displays Out of sync status.
Prerequisites
Controller VM powered off or controller VM deleted from the vCenter Server.
Procedure
Results
If the controller VM is powered off, Management Plane triggers a power on command for the controller.
If the controller VM is deleted, the entries of the controller are deleted from the Management Plane and Management Plane communicates the controller deletion to the detailsCentral Control Plane.
What to do next
Create a new controller using the Add Node option. For details, refer to the NSX Administration Guide.