ERROR_CLUSTER_LAST_INTERNAL_NETWORK 0x800713CA

Error code 5066 · HRESULT 0x800713CA

WINDOWS

The cluster network is the only one configured for internal cluster communication between two or more active cluster nodes. The internal communication capability cannot be removed from the network.

Windows troubleshooting diagram: Device Manager warning and a system file scan
Windows errors: check drivers, system files and Event Viewer, in that order.

What it means

ERROR_CLUSTER_LAST_INTERNAL_NETWORK is a Windows error code (system error 5066, returned as HRESULT 0x800713CA) reported by Windows. Its official message is: “The cluster network is the only one configured for internal cluster communication between two or more active cluster nodes. The internal communication capability cannot be removed from the network.”

How to fix ERROR_CLUSTER_LAST_INTERNAL_NETWORK

  1. Test connectivity to the remote host first (ping, then the exact port)
  2. Check firewall, VPN and proxy rules for the involved process
  3. Run 'ipconfig /flushdns' and 'netsh interface ip reset', then reboot

Related errors

ERROR_CLUSTER_NETWORK_HAS_DEPENDENTSERROR_CLUSTER_NODE_ALREADY_MEMBERERROR_CLUSTER_NETWORK_ALREADY_OFFLINEERROR_CLUSTER_NETWORK_ALREADY_ONLINEERROR_INVALID_OPERATION_ON_QUORUMERROR_DEPENDENCY_NOT_ALLOWEDERROR_CLUSTER_NODE_ALREADY_DOWN

Source: Microsoft WinError.h

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