Good Morning,
I am seeing this event on Hyper-V host. The network adapters all have different MAC addresses. I am not experiencing any issues but wondering why the event logs keep appearing under application log?
Is this normal message or there is an issue that may cause additional problem in the future?
MAC conflict: A port on the virtual switch has the same MAC as one of the underlying team members on Team Nic Microsoft Network Adapter Multiplexor Driver
Log Name: System
Source: Microsoft-Windows-MsLbfoSysEvtProvider
Date: 7/25/2016 9:51:11 AM
Event ID: 16945
Task Category: None
Level: Warning
Keywords: Classic
User: N/A
Computer: HAI-USAH1-HVH04.tescogroup.com
Description:
MAC conflict: A port on the virtual switch has the same MAC as one of the underlying team members on Team Nic Microsoft Network Adapter Multiplexor Driver
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-MsLbfoSysEvtProvider" Guid="{387ed463-8b1b-42c9-9ef0-803fdfd5d94e}" EventSourceName="MsLbfoProvider" />
<EventID Qualifiers="32768">16945</EventID>
<Version>0</Version>
<Level>3</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2016-07-25T13:51:11.028463700Z" />
<EventRecordID>605591</EventRecordID>
<Correlation />
<Execution ProcessID="4" ThreadID="12584" />
<Channel>System</Channel>
<Computer>HAI-USAH1-HVH04.tescogroup.com</Computer>
<Security />
</System>
<EventData>
<Data Name="DriverObject">
</Data>
<Data Name="Member">Microsoft Network Adapter Multiplexor Driver</Data>
</EventData>
</Event>
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Thank You
Raed