Network Connectivity and Configuration

Updated: November 25, 2009

Applies To: Windows Server 2008 R2

Each node in a failover cluster requires network connectivity with the other nodes. Problems with a network adapter or other network device (either physical problems or configuration problems) can interfere with connectivity.

Events

Event ID Source Message

1096

Microsoft-Windows-FailoverClustering

Cluster service cannot use network adapter %1 because it does not have a valid IP address assigned to it.

1289

Microsoft-Windows-FailoverClustering

The Cluster Service was unable to access network adapter '%1'. Verify that other network adapters are functioning properly and check the device manager for errors associated with adapter '%1'. If the configuration for adapter '%1' has been changed, it may become necessary to reinstall the failover clustering feature on this computer.

1290

Microsoft-Windows-FailoverClustering

The Cluster Service was unable to determine the IPv6 address assigned to the %1 network adapter. Please be sure that IPv6 has not been disabled on the %1 network adapter.

1553

Microsoft-Windows-FailoverClustering

This cluster node has no network connectivity. It cannot participate in the cluster until connectivity is restored. Run the Validate a Configuration wizard to check your network configuration. If the condition persists, check for hardware or software errors related to the network adapter. Also check for failures in any other network components to which the node is connected such as hubs, switches, or bridges.

1554

Microsoft-Windows-FailoverClustering

This cluster node has lost all network connectivity. It cannot participate in the cluster until connectivity is restored. The cluster service on this node will be terminated.

1572

Microsoft-Windows-FailoverClustering

Node '%1' failed to join the cluster because it could not send and receive failure detection network messages with other cluster nodes. Please run the Validate a Configuration wizard to ensure network settings. Also verify the Windows Firewall 'Failover Clusters' rules.

1583

Microsoft-Windows-FailoverClustering

Cluster service failed to disable Internet Protocol security (IPsec) on the Failover cluster virtual adapter '%1'. This could have a negative impact on cluster communication performance. If this problem persists, please verify your local and domain connection security policies applying to IPSec and the Windows Firewall. Additionally, please check for events related to the Base Filtering Engine service.

4871

Microsoft-Windows-FailoverClustering

The cluster service failed to start. This was because the failover cluster virtual adapter failed to initialize the miniport adapter. The error code was '%1'. Verify that other network adapters are functioning properly and check the device manager for errors. If the configuration was changed, it may be necessary to reinstall the failover clustering feature on this computer.

4872

Microsoft-Windows-FailoverClustering

The failover cluster virtual adapter failed to generate a unique MAC address. Either it was unable to find a physical Ethernet adapter from which to generate a unique address or the generated address conflicts with another adapter on this machine. Please run the Validate a Configuration wizard to check your network configuration.

Related Management Information

Network Interface on a Clustered Node

Failover Clustering

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