ERROR_CLUSTER_NODE_NOT_MEMBER - 5052 (0x13BC)
The cluster node is not a member of the cluster.
Updated: Feb 21, 2026
Technical Background
The ERROR_CLUSTER_NODE_NOT_MEMBER error is a specific Windows API error code that indicates a cluster node has not been properly configured or joined to the cluster. This error can occur in various scenarios, such as during operations that require the node to be part of the cluster.
Error Details
- Error Name:
ERROR_CLUSTER_NODE_NOT_MEMBER - Numeric Code: 5052 (0x13BC)
- Short Description: The cluster node is not a member of the cluster.
This error typically occurs when an operation that requires the node to be part of the cluster fails because it has not been properly configured or joined. It can also indicate issues with the cluster configuration, such as misconfigured network settings or incorrect node roles.
Common Causes
- Invalid Node Configuration: The node may have been improperly configured during setup.
- Network Issues: Network connectivity problems between the node and the cluster might prevent proper membership.
- Cluster Configuration Errors: Misconfigurations in the cluster itself, such as incorrect IP addresses or network settings, can cause this error.
Real-World Context
In a clustered environment, nodes must be properly configured to join the cluster. This involves ensuring that all necessary services are running and that the node has the correct configuration files and network settings. Failure to do so can result in this error during operations such as failover or maintenance tasks.
Is This Error Critical?
The criticality of this error depends on the specific operation being performed. If a node is required for an operation, but it is not part of the cluster, the operation will fail. However, if the operation can be completed without the missing node, the impact may be minimal.
How to Diagnose
- Review Node Configuration: Ensure that the node has been properly configured and joined to the cluster.
- Check Network Connectivity: Verify that there are no network issues preventing the node from joining the cluster.
- Validate Cluster Configuration: Confirm that the cluster configuration is correct, including IP addresses, network settings, and roles assigned to nodes.
How to Resolve
- Correct Node Configuration: Ensure that all necessary services are running and that the node has the correct configuration files and network settings.
- Resolve Network Issues: Address any network connectivity problems between the node and the cluster.
- Reconfigure Cluster: If necessary, reconfigure the cluster to ensure proper membership of nodes.
Developer Notes
When developing applications that interact with clustered environments, it is crucial to handle this error appropriately. Developers should include checks for this error and provide appropriate feedback or retry mechanisms in their code.
Related Errors
ERROR_CLUSTER_INVALID_NODE(5041)ERROR_CLUSTER_NODE_EXISTS(5042)ERROR_CLUSTER_JOIN_IN_PROGRESS(5039)
FAQ
Q: What does the ERROR_CLUSTER_NODE_NOT_MEMBER error indicate?
A: It indicates that a cluster node is not part of the cluster and cannot perform operations requiring membership.
Q: How can I prevent this error from occurring?
A: Ensure proper configuration, network settings, and roles for nodes joining the cluster. Regularly check and validate cluster configurations to avoid issues.
Q: Can this error be critical in certain scenarios?
A: Yes, if an operation requires a node that is not part of the cluster, it can cause operations to fail or be delayed.
Summary
The ERROR_CLUSTER_NODE_NOT_MEMBER error indicates that a cluster node has not been properly configured or joined to the cluster. This error can occur due to various issues such as invalid configuration, network problems, or misconfigured cluster settings. Proper diagnosis and resolution involve reviewing node configurations, checking network connectivity, and validating cluster settings. Handling this error appropriately in applications is crucial for maintaining reliable operation in clustered environments.