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Article ID: 837123 - Last Review: January 12, 2015 - Revision: 1.0

This article has been archived. It is offered "as is" and will no longer be updated.

Symptoms

If your laptop computer uses a wireless 802.11 CardBus/PCMCIA network adapter, you may hear popping or clicking noises from the laptop speakers.

Cause

This behavior occurs because the sound card on many older laptop computers is not shielded correctly.

Because the sound card is frequently positioned close to the CardBus/PCMIA slot in the laptop computer, the waves of energy that are dispersed through the network adapter interfere with the sound card. This interference causes these noises to come through the speakers. The sounds correspond to data being transferred on the wireless network.

Resolution

To resolve this behavior, the original equipment manufacturer (OEM) of the laptop computer can add more shielding for the sound card. To determine whether additional shielding can be added, contact the manufacturer.

For information about your hardware manufacturer, visit the following Web site:
http://support.microsoft.com/gp/vendors/en-us (http://support.microsoft.com/gp/vendors/en-us)
Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use (http://go.microsoft.com/fwlink/?LinkId=151500) for other considerations.

Applies to
  • Microsoft Windows 2000 Professional Edition
  • Microsoft Windows XP Professional
Keywords: 
kbnosurvey kbarchive kbprb KB837123
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