Microsoft KB Archive/931857

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A 10 GbE network adapter displays an incorrect link speed in Windows XP and Windows Server 2003

Article ID: 931857

Article Last Modified on 2/14/2007



APPLIES TO

  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional



SYMPTOMS

In Microsoft Windows XP and Microsoft Windows Server 2003, a 10 Gigabit Ethernet (10 GbE) network adapter displays an incorrect link speed. Typically, the network adapter displays a link speed of 1.4 gigabits (Gb), regardless of the actual link speed.

CAUSE

This problem occurs because a network adapter calculates its link speed in multiples of 100 bits per second (bps). When the result exceeds a 32-bit field, the network adapter displays only the remainder. This remainder is usually 1.4 Gb.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Keywords: kbexpertiseinter kbtshoot KB931857