Virtual Machine showing as no associated with VMM

I am running SCVMM 2012 SP1 and Hyper-V on Windows Server 2012 as well.

I have a two-node cluster of Hyper-V nodes and just a handful of VMs.

I noticed that the VMs created through VMM are reporting as managed by VMM; however, the VMs created before VMM are reporting as not managed by VMM.

And when trying to run some commands from PowerShell I am getting this error message: "Machine VM_Name is not associated with this VMM management server. (Error ID: 422)."

I have been searching for a clue on how to correct this but I only have found information on how correct it for either a hypervisor or a VM that does not exists.

The solution that I seen indicates to modify a parameter in one of the VMM database tables but the end result I believe is to destroy the VMM entry. In my case I do not want to destroy the VM but I want to associate the VM with VMM so  can manage it.

Is there a way to do this?

Thanks.