What does Windows error code 5907 (ERROR_CLUSTER_POISONED) mean?

 
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ERROR_CLUSTER_NO_NET_ADAPTERS ERROR_CLUSTER_GROUP_MOVING

ERROR_CLUSTER_POISONED

ERROR_CLUSTER_POISONED indicates that the cluster marked a node or operation as unreliable after a serious failure. Treat it as a symptom requiring evidence collection, not as a state to override by force.

What to check

  • Collect cluster and System logs before restarting or rejoining the affected node.
  • Look for repeated resource host crashes, storage failures, or membership transitions immediately before the poison event.
  • Validate the node only after the underlying hardware, network, or resource-DLL issue is resolved.
Get-ClusterLog -UseLocalTime -Destination C:\Temp

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