As you read from the title, to unregister Nutanix Cluste from Nutanix Prism Central: Login to one of your Nutanix CVM execute this command: ncli multicluster remove-from-multicluster external-ip-address-or-svm-ips=xxx.xxx.xxx.xxx username=admin password=nutanix/4u force=true where xxx.xxx.xxx.xxx your prism central ip addresses. please wait the process to finish Cluster unregistration is currently in progress. This operation may take a while. If You Failed! Error: No route to host (Host unreachable) Check your ip addresses If your prism central VM is powered off, then power on first If your prism central VM is deleted, you can delete the multicluster state and wait for new state to be created. in one of your CVM: ncli multicluster get-cluster-state copy cluster-id: [sourcecode] Cluster Id : xxxnxnxnxn-xnxnxmx-xmnxmxmx-xjxmxmx Cluster Name : Unnamed Is Multicluster : true Controller VM IP Addre... : [126.96.36.199] External or Masqueradi.