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ERROR_CLUSTER_NETWORK_NOT_INTERNAL
The operation requires a network that the cluster can use for node-to-node communication, but the selected network has a client-only or otherwise incompatible role. Changing network roles without checking dependencies can disrupt the cluster.
What to check
- Inspect the cluster network and its interfaces to determine which networks carry internal communication.
- Keep at least one healthy internal communication path between active nodes.
- Validate the design after changing network topology or adapter roles.
Get-ClusterNetwork; Get-ClusterNetworkInterfaceMicrosoft: Get-ClusterNetworkInterface
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