Event ID - 12564

Event Id12564
SourceMicrosoft-Windows-Hyper-V-Worker
Description%1' No available MAC address for %4 (%3)
Event InformationAccording to Microsoft :
Cause :
This event is logged when MAC address not available in virtual machine.
Resolution :
Change dynamic MAC Address to static MAC address
The default number of dynamic MAC addresses for virtual machines (256) has been exceeded. Turn Off the virtual machine and allocate a static MAC Address, then restart the virtual machine.
Note: Turning off a virtual machine is equivalent to powering off a computer, so data loss is possible.
Verify :
The virtual machine starts and runs network operations without any problems.
Reference LinksEvent ID 12564 from Microsoft-Windows-Hyper-V-Worker

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