Event ID 12566 — NIC Configuration

Updated: April 7, 2009

Applies To: Windows Server 2008

This is preliminary documentation and subject to change.

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This Aspect refers to network switchport, static and dynamic MAC address issues.

Event Details

Product: Windows Operating System
ID: 12566
Source: Microsoft-Windows-Hyper-V-SynthNic
Version: 6.0
Symbolic Name: VM_CANT_SET_PROPERTY_WHILE_VM_RUNNING
Message: '%1' The %3 property cannot be modified because the virtual machine is running.

Resolve

Change property after taking turning off virtual machine

You cannot change some NIC properties while the virtual machine is on. Turn Off the virtual machine and then change the property. 

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.

Related Management Information

NIC Configuration

Hyper-V

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