Virtual machine out of registrations

Our Netcam Studio host is a Virtual Machine running on a virtual machine cluster. When we must patch one of the underlying cluster node machines we migrate the NCS VM to a different cluster node to maintain the uptime. After one of these migrations, if we restart the NCS software for any reason, we are forced to reregister. Now we are receiving a message that there aren’t any registrations remaining on this license. How can we get this registration renewed and also make it stick through migrations within a cluster?

Licensing is based on hardware so when changed license must be re-registered. For security the amount of times is limited.
However, send license number to and ask for a reset of license.