I have a Windows 2008 IBM 3550 M2 server with 2 on board Broadcom NIC's that continue to go into an 'unknown status'. One of the NIC's will go into an 'unknown status' and then back to ok, but then the second NIC will go into an 'uknown status'. They keep swapping back and forth. They are on different subnets and are on the latest driver version. There are no limitations from a networking perspective and both NIC's are pingable even though they show unknown. Has anyone seen this behavior before?