Microsoft KB Archive/870974

= You may not successfully log on to a domain by using a roaming profile when you use a wireless connection in Windows XP =

Article ID: 870974

Article Last Modified on 6/1/2006

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APPLIES TO


 * Microsoft Windows XP Professional
 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Home Edition

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SYMPTOMS
When you use a wireless connection (802.1x) with a roaming profile on a Microsoft Windows XP-based computer to log on to a domain, the log on may not be completed successfully during the authentication process and the wireless connection is ended.



CAUSE
This problem may occur when Extensible Authentication Protocol (EAP) content cannot be written to the Windows registry because a large roaming profile does not fully download before the authentication process has completed.



Service pack information
To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

322389 How to obtain the latest Windows XP service pack

Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
To install this hotfix, you must have Windows XP Service Pack 1 (SP1) installed.

For additional information about how to obtain Windows XP SP1, click the following article number to view the article in the Microsoft Knowledge Base:

322389 How to obtain the latest Windows XP service pack

Restart information
You do not have to restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

Hotfix file information
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 tool in Control Panel.

  Date         Time   Version             Size  File name --  14-Jul-2004  19:31  5.1.2600.1575    103,936  Dhcpcsvc.dll 14-Jul-2004 19:14  5.1.2600.1575    168,064  Ndis.sys 11-Jul-2004 19:01  5.1.2600.1575     12,416  Ndisuio.sys 14-Jul-2004 19:31  5.1.2600.1575  1,630,720  Netshell.dll 11-Jul-2004 19:01  5.1.2600.1575     84,864  Nwlnkipx.sys 14-Jul-2004 19:31  5.1.2600.1576     57,344  Wzcdlg.dll 14-Jul-2004 19:31  5.1.2600.1576     31,232  Wzcsapi.dll 14-Jul-2004 19:31  5.1.2600.1576    282,112  Wzcsvc.dll 11-Jul-2004 19:44  5.1.2600.1575    594,432  Xpsp2res.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbbug kbfix kbqfe kbwinxpsp2fix kbwinxppresp2fix kbhotfixserver KB870974

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