What does Windows error code 5047 (ERROR_CLUSTER_NETINTERFACE_NOT_FOUND) mean?

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The expected cluster network interface was not found.

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ERROR_CLUSTER_NETINTERFACE_EXISTS	ERROR_CLUSTER_INVALID_REQUEST

ERROR_CLUSTER_NETINTERFACE_NOT_FOUND

The cluster cannot find the interface object referenced by the operation. A missing interface can be caused by a disabled NIC, lost VLAN connectivity, a changed adapter identity, or a cluster configuration that is no longer current.

What to check

Check the interface state on every node and verify that the expected adapter is connected and configured consistently.
Compare the cluster network view with the operating system adapter inventory before changing cluster settings.
Generate cluster logs immediately after reproducing the issue so the adapter transition is captured.

Get-ClusterNetworkInterface

Microsoft: Get-ClusterNetworkInterface

Microsoft: Get-ClusterLog

Microsoft: Test-Cluster

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