| Event Id | 12565 |
| Source | Microsoft-Windows-Hyper-V-VStack-SynthNic |
| Description | No available MAC address for "%4" (%3). |
| Event Information | According to Microsoft : Cause : This event is logged when MAC address not available. 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 Links | Event ID 12565 from Microsoft-Windows-Hyper-V-VStack-SynthNic |
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