A protocol called NFC is used by VMware Converter for the cloning process.
In VMware Converter 5.0 encryption was introduced to increase security for the data transfer but at the expense of performance.
To improve the performance of the converter we can disable this feature.
To do so we need to edit the converter-worker xml file. The default location of this file is
“C:\Users\All Users\Application Data\Application Data\Application Data\VMware\VMware vCenter Converter Standalone\converter-worker.xml”
Open this file and go to the locate the section which contains
Change the value of useSsl from true to false.
After this restart the vmware converter services from services.msc.
Relatively far down you will find the parameter for “nfc” – change the value in “useSsl” from “true” to “false”: