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ERROR_CLUSTER_INVALID_NETWORK_PROVIDER
The Cluster service rejected the network provider configuration used for the request. This is different from a simple unreachable node: the provider or protocol binding itself is not acceptable to the cluster.
What to check
- Use cluster validation to identify unsupported or inconsistent network configuration across nodes.
- Check that all nodes expose the intended physical and virtual adapters consistently and that cluster traffic is not bound to an inappropriate management-only interface.
- If a third-party network component is involved, correlate its installation or update with the first cluster error in the log.
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