VCenter Converter Standalone cannot copy virtual machines from one ESXi server to another

vmware-convertervmware-esxi

I have two ESXi servers, both updated with the latest patches through the Host Update Utility. One of the ESXi servers is a new install, other was around for about 8 months without any problems arising. All VMs are ESXi native, created on the old server (I have serveral Windows 2003 and Arch Linux VMs).
After installing ESXi on the new server and updating both servers, I tried moving VMs from the old one. However, the job fails every time with the status:

FAILED: The operation is not supported on the object.

However, I am still able to convert ESXi VM to the VMware Server VM (it's installed on my own workstation).
I have necessary sysprep files in the Converter directory, both hypervisors and the Converter are the latest versions available… What's wrong? What should I do to be able to move VMs between ESXi servers?

UPD: Converter also worked in the past (about 4 months ago), while I templorarily installed ESXi on a whitebox to test whether conversion works at all.

Best Answer

Why not export the VM's as virtual appliances on the source host and import them on the destination host? That's the way I move VM's around and it works like a charm. (Of course I'm a complete VMware neophyte).