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Article ID: 920875 - Last Review: October 9, 2011 - Revision: 3.0

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SYMPTOMS

Consider the following scenario:
  • You have a universal serial bus (USB) hub that is connected to a Microsoft Windows XP-based computer.
  • You have a USB device that is connected to the hub, and the USB device works correctly.
  • You disconnect the USB device from the hub, and then you reconnect the USB device to the hub.
In this scenario, Windows may not detect the USB device when it is reconnected to the hub. When this problem occurs, the USB device does not work correctly. Additionally, Device Manager lists the USB device as an unknown device.

RESOLUTION

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language. The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Prerequisites

To apply this hotfix, you must have Windows XP Service Pack 2 (SP2) installed on the computer.

Restart requirement

You must restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix replaces the hotfix that is described in the following Microsoft Knowledge Base article:
922128  (http://support.microsoft.com/kb/922128/ ) You do not receive notification when the USB bus is overloaded on a Windows XP-based computer
Collapse this tableExpand this table
File nameFile versionFile sizeDateTime
Usbhub.sys5.1.2600.298059,13623-Aug-200609:10

STATUS

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

MORE INFORMATION

For more information, click the following article number to view the article in the Microsoft Knowledge Base:
824684  (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates
For more information about problems that may occur when you connect a USB device to a computer, click the following article number to view the article in the Microsoft Knowledge Base:
871233  (http://support.microsoft.com/kb/871233/ ) A USB device is not recognized if you attach it immediately after your Windows XP-based computer comes out of standby or hibernation

APPLIES TO
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Home Edition
Keywords: 
kbautohotfix kbusb kbfix kbqfe KB920875
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