You must set the default KMS cluster if you do not make the first cluster the default cluster, or if your environment uses multiple clusters and you remove the default cluster.
As a best practice, verify that the Connection Status in the Key Management Servers tab shows Normal and a green check mark.
- Log in to the vSphere Web Client and select a vCenter Server system.
- Click the Configure tab and click Key Management Servers under More.
- Select the cluster and click Set KMS cluster as default.
Do not select the server. The menu to set the default is available only for the cluster.
- Click Yes.
The word default appears next to the cluster name.