I have tried installing "Windows Srv 2022 DataCtr/Std KMS host key" on Windows Server 2012R2 KMS server, but apparently it is failing:
The following error has occurred. Please resolve the error and try again. Description: The Software Licensing Service reported that the product key is invalid.
I am sure the key is correct, and I have the host key of 2019 already installed. I looked if there is an update to KMS on 2012R2 as the case has been for 2019, but apparently not yet, if anyone has an idea on how to get this going on 2012R2, help appreciated :)