The era of the simple "Sentinel clone" is ending. With the rise of and Trusted Platform Modules (TPMs) , physical keys are moving into the cloud. We are already seeing "Cloud Dongles" where the license is checked every 30 seconds via HTTPS.
If you are moving a dongle to a new machine or VM and it isn't being recognized: sentinel dongle clone
Provide advice on how to for a backup dongle. The era of the simple "Sentinel clone" is ending
A Sentinel dongle is a physical security key plugged into a computer’s USB port. The protected software will not run unless it detects the specific cryptographic hardware token. How It Works sentinel dongle clone