Windows error 5906 (ERROR_CLUSTER_NO_NET

Status / error code:		Category:

Constant name:
Source:	Operating System:
Description: No network adapters are available.

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ERROR_CLUSTER_MISMATCHED_COMPUTER_ACCT_NAME	ERROR_CLUSTER_POISONED

ERROR_CLUSTER_NO_NET_ADAPTERS

ERROR_CLUSTER_NO_NET_ADAPTERS means the cluster service cannot find usable network adapters on the node. This can result from disabled adapters, drivers, virtual-switch changes, or adapter configuration that no longer matches cluster requirements.

What to check

Verify that the physical or virtual adapters are enabled and have the expected IP configuration.
Compare adapter and VLAN configuration with a healthy node.
Run network validation after correcting the underlying interface issue.

Get-ClusterNetworkInterface
Get-NetAdapter

Microsoft: Validate hardware for a failover cluster

Microsoft: Get-ClusterLog

Microsoft: Failover Clustering overview

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