Check duplex (auto-negociation) on Windows
ipconfig doesn’t print the result of auto-negociation. At least on
Windows XP SP2 and Windows Se7en.
To check the result of the auto-negociation process, open the
System journal and check the events that have the network driver
name as source.
Here’s an example from Windows Se7en on my Lenovo IdeaPad S10:
Log Name: System Source: b57nd60x Date: 17/03/2009 20:08:59 Event ID: 9 Task Category: None Level: Information Keywords: Classic User: N/A Computer: karuna Description: Broadcom NetLink (TM) Fast Ethernet: Network controller configured for 100Mb full-duplex link.
That’s all folks !