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ERROR_CLUSTER_NETWORK_EXISTS
The cluster has already discovered or registered the network that the operation is trying to create or register. Duplicate network work should be avoided because overlapping networks and adapters can make cluster communication ambiguous.
Compare the discovered network’s subnet and interfaces with the deployment input. If they represent the same topology, make provisioning reuse the cluster object instead of attempting to register a second equivalent network.
What to check
- List cluster networks and their associated interfaces before making topology changes.
- Check for duplicate or overlapping IP configuration, VLAN assignments, or adapter names introduced during deployment.
- Run cluster validation after correcting the underlying network configuration.
Get-ClusterNetwork; Get-ClusterNetworkInterfaceLooking for a different code? Search another status or error code.