Windows Server 2022 CAL Activation Issue

Menard, Laurent (GE Vernova)

Your concern regarding the reuse of the activation code is understandable, but you will not lose your licenses by removing them from the server. Once a code is accepted by Microsoft, it is recorded in the Microsoft Clearinghouse database and associated with your organization's entitlement. If the local database on your server is corrupted or needs to be reset, you do not actually "reuse" the original activation code in the traditional sense. Instead, you use the Manage Licenses wizard within licmgr.exe to perform a "reinstallation" or "migration" of those existing CALs.

To proceed safely, open the Remote Desktop Licensing Manager, right-click your server, and select Manage Licenses. Choose the option to migrate or reinstall licenses, and when prompted for the reason, select that the license server is being rebuilt or the database is corrupted. This process generates a new request to the Clearinghouse based on your existing entitlement. Since your code has already been "used," the automated internet validation might still fail; however, choosing the Telephone connection method at this stage allows a Microsoft representative to see your previous activation in their system and provide a new License Key Pack ID.

This process essentially "moves" the CALs from the old, failed registration to your current Server ID without requiring a brand-new purchase or a fresh retail code. As long as you have your original purchase documentation or the agreement number, the Microsoft Clearinghouse can re-issue the licenses to your server regardless of how many times the local database has been cleared.

Domic V.

hi Menard, Laurent (GE Vernova),
A few things are worth checking first:

• Make sure the activation code matches the correct product type:
  • RDS CALs vs Windows Server CALs
  • User CALs vs Device CALs
  Verify the server is fully updated and the Remote Desktop Licensing service is installed correctly. If you are entering the code in RD Licensing Manager, ensure you selected the correct license program during installation (Retail, Open License, SPLA, etc.). Sometimes copying/pasting the code introduces hidden spaces or characters, so try typing it manually.

You can also check Event Viewer:

Applications and Services Logs

Microsoft

Windows

TerminalServices-Licensing

If the code still gets rejected, it may require Microsoft Licensing Support to verify whether the activation code was issued correctly or tied to a different licensing program.
If my answer is useful for you, please hit Accept the answer to support me.

Thank you so much,

Hi Menard, Laurent (GE Vernova),

The rejection of your CAL activation code typically occurs because the Install Licenses Wizard is configured with an incorrect License Program. You must ensure that the selection in the dropdown menu such as Retail, Open License, or Enterprise Agreement matches the specific documentation provided with your purchase. If there is a discrepancy between the purchase channel and the wizard selection, the Remote Desktop Licensing Manager, accessible via licmgr.exe, will fail to validate the key. Additionally, verify that your license server has been activated and displays a green checkmark in the management console. An unactivated license server cannot generate the unique Server ID required to bind with your CALs, which often results in a generic rejection error.

If the configuration is correct but the code continues to fail, the issue may lie with the connection method or a specific database corruption. You should change the connection method in the server properties from Automatic to Telephone. This allows you to bypass potential internet-based validation hurdles and provides the necessary details to contact the Microsoft Clearinghouse. A representative can then manually verify your entitlement and provide a License Key Pack ID that you can enter directly into the wizard. This manual override is the most reliable way to resolve persistent activation failures or to handle situations where the CALs might need to be downgraded to match your specific server environment.

If this answer helped, please click "Accept Answer " so that other community members with similar issues can easily find the solution. Your contribution is much appreciated.

Domic V.