We are seeing the following after creating a team LAN using the Windows 2016 teaming facility as normal:
Log Name: System
Source: Microsoft-Windows-MsLbfoSysEvtProvider
Date: 10/05/2018 07:53:44
Event ID: 16945
Task Category: None
Level: Warning
Keywords: Classic
User: N/A
Computer: %computername%.domain.suffix
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:
16945
0
3
0
0
0x80000000000000
715017
System
%computername%.domain.suffix
Microsoft Network Adapter Multiplexor Driver