ArcGIS Server 10.1 SP1, license issue, MAC Adress: ffffffff

[CraigMark]

Installing ArcGIS Server 10.1 SP1
Windows Server 2008 R2 UAC is off
Server not connected to internet

Got .eslf license file from ESRI

In software authorization wizard: "Could not find a match for the following identifiers: MAC Address: ffffffff"

Any ideas?

[BubbaHey]

When I had this problem I contacted ESRI Customer Service. If you contact technical support, they will just send you to customer service.

[CraigMark]

NICs were teamed. Solution: Unteam, authorize and reteam NICs