Microsoft KB Archive/829116

= Delay in Connecting to the Wireless Network After Your 802.1x Client Is Authenticated =

Article ID: 829116

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Advanced Server

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SYMPTOMS
After your wireless 802.1 network client is authenticated, you may experience a short delay before you gain full connectivity through the wireless network connection.



CAUSE
This issue occurs because the 802.1 service makes an immediate Dynamic Host Configuration Protocol (DHCP) address renewal request after the client has been authenticated. However, this request is made before the Extensible Authentication Protocol (EAP) handshake is established and received by the client. As a result, the first DHCP address renewal request is lost, and therefore you experience a delay until a second request is issued by the client.

802.1 is used in some environments to allocate IP addresses, based on which user is logging on to the network. In this configuration, the client should update its IP address at each authentication. Otherwise, an IP address that was allocated to a previous user may be retained.



Hotfix Information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, 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
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.

File Information
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.   Date         Time   Version            Size    File name ---  18-Sep-2003  15:14  5.0.2195.6823      89,360  Dhcpcsvc.dll 18-Sep-2003 12:46  5.0.2195.6823     196,880  Wzcsvc.dll



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



MORE INFORMATION
For additional information about how hotfix packages are named, click the following article numbers to view the articles in the Microsoft Knowledge Base:

816915 New Naming Schema for Microsoft Windows Hotfix Packages

824684 Description of the Standard Terminology That Is Used to Describe Microsoft Software Updates

Additional query words: win2k win2000 wifi Wi Fi 802.11b 802.11a 802.11g

Keywords: kbhotfixserver kbqfe kbdhcp kbnetworkcard kbnetwork kbbug kbfix kbqfe kbwin2000presp5fix KB829116

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