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STATUS_CLUSTER_NO_NET_ADAPTERS
No usable cluster network adapters are available
STATUS_CLUSTER_NO_NET_ADAPTERS means the cluster operation sees no usable network adapters for its purpose. It does not say that Windows has no physical NICs; adapters can be excluded, disconnected, unavailable to the cluster, or absent from the relevant node/network relationship.
Inspect cluster-visible interfaces rather than relying only on local adapter inventory. A single-management NIC, a virtual adapter, or a NIC with a link state can exist in the operating system while failing to satisfy the cluster networking requirement.
What to verify
- Use
Get-ClusterNetworkInterfaceto inspect cluster-visible adapters. - Check every node, not only the one that emitted the status.
- Run
Test-Clusterafter intentional adapter, VLAN, or driver changes.
References
- Microsoft: Get-ClusterNetwork
- Microsoft: Get-ClusterNetworkInterface
- Microsoft: Failover Clustering overview
- Microsoft: Test-Cluster
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