Here is how to select physical NICs

[elekgeek]

If IsObj($colItems) Then
For $objItem In $colItems
FileWriteLine($log, "[" & $objItem.NetConnectionID & "]")
FileWriteLine($log, "ProductName=" & $objItem.ProductName)
$value = $objItem.NetConnectionID
$GUID = $objItem.GUID
If StringLen($value) > 1 Then $Output = $Output & $value & "|"
$colItems2 = $objWMIService.ExecQuery("SELECT * FROM Win32_NetworkAdapterConfiguration WHERE SettingID = '" & $GUID & "'", "WQL", $wbemFlagReturnImmediately + $wbemFlagForwardOnly)
For $objItem2 In $colItems2
If $objItem.Index = $objItem2.Index Then
FileWriteLine($log, "SettingID=" & $objItem2.SettingID)
FileWriteLine($log, "IPAddress=" & $objItem2.IPAddress(0))
FileWriteLine($log, "MACAddress=" & $objItem2.MACAddress)
EndIf
Next
Next
Else
MsgBox(0, "WMI Output", "No WMI Objects Found for class: " & "Win32_NetworkAdapterConfiguration")
EndIf

it works like a charm