| Event Id | 21104 |
| Source | Microsoft-Windows-Hyper-V-High-Availability |
| Description | failed to unregister the virtual machine with the Virtual Machine Management Service. |
| Event Information | According to Microsoft : Cause : This event is logged when the virtual machine failed to unregister with the Virtual Machine Management Service in Hyper-V. Resolution : Retry planned failover operation Ensure that you have the appropriate permissions on the target machine, and check the configuration settings of the virtual machine. Then try planned failover operation again. Verify : All the clustered resources are in a healthy state and failover operations are completing successfully. |
| Reference Links | Event ID 21104 from Source Microsoft-Windows-Hyper-V-High-Availability |
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