Error:

Desktops showing activation errors randomly after 6 months or working fine.

This is possibly caused after the reimaging done late last year but no idea why it takes +6 months to show up.

Error message when trying to activate:

Devices are acting as if it’s trying to connect to a KMS server.

 Error 0x8007232B DNS name does not exist 

Fix:

Device must be activated with the ORIGINAL key

Find the original key with this command;  wmic path softwarelicensingservice get OA3xOriginalProductKey

Go to windows activation, Settings > Update & Security > Activation

And Change product key to this original key. (need to have admin permissions)

Activate windows and you’re golden!

Don’t be smart and try to change the key and activate through the “SLMGR /ipk” command, THIS FAILS!! And will lead you down a path of despair… Don’t follow me.