Microsoft KB Archive/828940

= Wireless Client Cannot Reconnect to a Wireless Access Point =

Article ID: 828940

Article Last Modified on 5/14/2007

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APPLIES TO


 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition

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SYMPTOMS
On a Microsoft Windows XP-based computer, you successfully make a wireless network connection to your network. However, you lose the connection and you cannot reconnect to the network unless you do one of the following:
 * Restart your computer.
 * Eject and then re-insert the network card.
 * Disable and then re-enable the network card.



CAUSE
This problem occurs because the wireless access point receives a connection request while the access point is trying to re-authenticate the wireless client for the same wireless network card. This later reconnection request is interpreted as a network attack on the access point. When this event occurs, the access point rejects the connection from the wireless client.



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, Microsoft recommends 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 phone 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
No prerequisites are required.

Restart requirement
You must restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes. The English version of this hotfix has the file attributes (or later) 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.

Windows XP
  Date         Time   Version        Size       File name --  26-Sep-2003  19:03  5.1.2600.1264     99,840  Dhcpcsvc.dll 26-Sep-2003 18:49  5.1.2600.1254    168,192  Ndis.sys 02-Aug-2003 09:38  5.1.2600.1254     12,416  Ndisuio.sys 26-Sep-2003 19:03  5.1.2600.1254  1,630,208  Netshell.dll 26-Sep-2003 19:03  5.1.2600.1276     57,344  Wzcdlg.dll 26-Sep-2003 19:03  5.1.2600.1276     31,232  Wzcsapi.dll 26-Sep-2003 19:03  5.1.2600.1276    281,088  Wzcsvc.dll 22-Sep-2003 21:01  5.1.2600.1275    568,832  Xpsp2res.dll

Windows XP 64-Bit Edition
  Date         Time   Version        Size       File name      Platform -  26-Sep-2003  18:57  5.1.2600.1264    308,736  Dhcpcsvc.dll   IA-64 02-Aug-2003 10:38  5.1.2600.1254    579,328  Ndis.sys 02-Aug-2003 10:38  5.1.2600.1254     41,088  Ndisuio.sys 26-Sep-2003 18:57  5.1.2600.1254  2,736,128  Netshell.dll   IA-64 26-Sep-2003 19:03  5.1.2600.1264     99,840  Wdhcpcsvc.dll  x86 26-Sep-2003 19:03  5.1.2600.1254  1,630,208  Wnetshell.dll  x86 26-Sep-2003 19:03  5.1.2600.1276     57,344  Wwzcdlg.dll    x86 26-Sep-2003 19:03  5.1.2600.1276     31,232  Wwzcsapi.dll   x86 26-Sep-2003 19:03  5.1.2600.1276    281,088  Wwzcsvc.dll    x86 22-Sep-2003 21:02  5.1.2600.1275    568,832  Wxpsp2res.dll  x86 26-Sep-2003 18:56  5.1.2600.1276    117,760  Wzcdlg.dll     IA-64 26-Sep-2003 18:57  5.1.2600.1276     65,024  Wzcsapi.dll    IA-64 26-Sep-2003 18:57  5.1.2600.1276    685,056  Wzcsvc.dll     IA-64 22-Sep-2003 21:02  5.1.2600.1275    568,320  Xpsp2res.dll   IA-64



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Microsoft Windows XP Service Pack 2.



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: kbhotfixserver kbqfe kbqfe kbwinxpsp2fix kbnetworkcard kbnetwork kbwinxppresp2fix kbfix kbbug KB828940

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