Event ID - 21203

Event Id21203
SourceMicrosoft-Windows-Hyper-V-High-Availability
DescriptionFailed to create virtual network switch port %1
Event InformationAccording to Microsoft :
Cause :
This event is logged when virtual network failed to create switch port.
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 LinksEvent ID 21203 from Source Microsoft-Windows-Hyper-V-High-Availability

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