My Offline Deployment of MetaDefender Sandbox has lost its license - What can I do?
MetaDefender Sandbox uses a licensing model based on the Deployment ID, which serves as a unique fingerprint of the system where the application was originally installed. You can find more information here.
When system configuration changes occur — such as a hostname update, MAC address change, or other hardware-related modifications — the Hardware Deployment ID will also change. As a result, the existing license becomes invalid, as shown in the example below:

To restore your license, you must first perform a deactivation of the initial Deployment ID using the following API Call to our Activation Server:
curl -X GET "https://activation.dl.opswat.com/deactivation?key=<activation-key>&deployment=<deployment unique-ID>"
Then perform a reactivation using the new Hardware Deployment ID generated by your system. This will ensure that the Transform Engine Instance inherits and matches the updated ID, allowing the license to be successfully reactivated.
Additional details about Offline Activation can be found here.
If Further Assistance is required, please proceed to log a support case or chatting with our support engineer.