I am looking for a Command line command to tell me the duplex speed of my network cards installed in a Windows 2003 server. I have set the card to Auto negotiate but a customer is saying that there ...

Has anybody seen issues with workstations auto negotiating speed and duplex recently, or have all those issues been worked out (assuming modern Cisco switches and modern workstations)? My new job has ...

When you are configuring Ethernet ports on PCs, laptops, servers, printers or switches, one of your configuration choices will almost always be duplex. So what is duplex and what is a duplex mismatch?