Activating/deactivating licenses for systems in a close network

Hi guys,

We are running in our organization some NX Witness servers (all have at this moment  6.1.0.42176 version) and because the company that sold us a lot of licenses doesn't want to help us with reactivation for another HW ID we thought that we can find a solution to connect to your licensing server. (we use a close network - normally no direct way to www)

One of my colleague created this https://github.com/xorpaul/connect-tunnel , I can activate with it a free license but I need to deactivate a lot of them to transfer to a new server and the button for deactivation doesn't appear. 

We need this story with activation and deactivation because we started with another architecture in our minds and now we want to use an architecture based on VMS. Also as base OS we use Ubuntu.

I hope you can help me or at least you can give me a good advice.

Best regards,

Lucian Todor