A , officially called a Generic Volume License Key (GVLK) , is a pre-defined, publicly available key provided by Microsoft. This key is installed on client machines (the servers or workstations that need to be activated). When you install a GVLK, the operating system is configured to look for a KMS host on your network and automatically attempt activation.
You accidentally installed the GVLK on your KMS host instead of a KMS Host Key. windows server 2016 kms client key
When installing a volume license edition of , the appropriate GVLK is often pre-installed. However, if you are converting a system from a Multiple Activation Key (MAK) or a retail version, you must manually enter the specific GVLK for your edition: Operating System Edition KMS Client Setup Key (GVLK) Windows Server 2016 Datacenter CB7KF-BWN84-R7R2Y-793K2-8XDDG Windows Server 2016 Standard WC2BQ-8NRM3-FDDYY-2BFGV-KHKQY Windows Server 2016 Essentials JCKRF-N37P4-C2D82-9YXRT-4M63B Source: Microsoft Learn How to Activate Using a KMS Client Key A , officially called a Generic Volume License