FIX: The user interface may respond slowly when the network adaptor is disconnected in Windows CE 5.0

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SYMPTOMS

In Microsoft Windows CE 5.0, the user interface may respond slowly when the network adaptor is disconnected. Threads that are underneath the regular priority level never have time to execute.

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CAUSE

This problem occurs because the Dynamic Host Configuration Protocol (DHCP) client in Windows CE is trying to contact the DHCP server when the network adaptor is in a disconnected state.

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A supported software update is now available from Microsoft as Windows CE 5.0 Core OS QFE 886653. To resolve this problem immediately, click the following article number for information about obtaining Windows CE Platform Builder and core operating system software updates:

837392 (http://support.microsoft.com/kb/837392/ ) How to locate core operating system fixes for Microsoft Windows CE Platform Builder products

Prerequisites

This software update is supported only if all previously issued software updates for this product have also been installed.

Restart requirement

After you install this software update, you must perform a clean build of the whole platform. To clean the platform, click Clean on the Build menu. To build the platform, click Build Platform on the Build menu. You do not have to restart your computer after you apply this software update.

Software update replacement information

This software update does not replace any other software updates.

File information

The English version of this software update package has the file attributes or later file attributes that are listed in the following table.

   Date         Time   Size     File name
   --------------------------------------------------------------------
   31-Jan-2005  21:20  614,400  Wincepb50-050131-kb886653-armv4i.msi
   31-Jan-2005  21:20  623,616  Wincepb50-050131-kb886653-mipsii.msi
   31-Jan-2005  21:20  623,616  Wincepb50-050131-kb886653-mipsii_fp.msi
   31-Jan-2005  21:20  626,688  Wincepb50-050131-kb886653-mipsiv.msi
   31-Jan-2005  21:20  626,688  Wincepb50-050131-kb886653-mipsiv_fp.msi
   31-Jan-2005  21:20  611,840  Wincepb50-050131-kb886653-sh4.msi
   31-Jan-2005  21:20  597,504  Wincepb50-050131-kb886653-x86.msi

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   Size     File name
   --------------------------------------------

   Path: Public\Common\Oak\Lib\Armv4i\Debug
   20-Jan-2005  00:06  311,832  Dhcp.lib
   20-Jan-2005  00:06   94,208  Dhcp.pdb

   Path: Public\Common\Oak\Lib\Armv4i\Retail
   20-Jan-2005  00:06  165,918  Dhcp.lib
   20-Jan-2005  00:06   94,208  Dhcp.pdb

   Path: Public\Common\Oak\Lib\Mipsii\Debug
   20-Jan-2005  00:06  316,794  Dhcp.lib
   20-Jan-2005  00:06   94,208  Dhcp.pdb

   Path: Public\Common\Oak\Lib\Mipsii\Retail
   20-Jan-2005  00:06  170,846  Dhcp.lib
   20-Jan-2005  00:06   94,208  Dhcp.pdb

   Path: Public\Common\Oak\Lib\Mipsii_fp\Debug
   20-Jan-2005  00:06  316,832  Dhcp.lib
   20-Jan-2005  00:06   94,208  Dhcp.pdb

   Path: Public\Common\Oak\Lib\Mipsii_fp\Retail
   20-Jan-2005  00:06  170,866  Dhcp.lib
   20-Jan-2005  00:06   94,208  Dhcp.pdb

   Path: Public\Common\Oak\Lib\Mipsiv\Debug
   20-Jan-2005  00:06  321,156  Dhcp.lib
   20-Jan-2005  00:06   94,208  Dhcp.pdb

   Path: Public\Common\Oak\Lib\Mipsiv\Retail
   20-Jan-2005  00:06  171,960  Dhcp.lib
   20-Jan-2005  00:06   94,208  Dhcp.pdb

   Path: Public\Common\Oak\Lib\Mipsiv_fp\Debug
   20-Jan-2005  00:06  321,198  Dhcp.lib
   20-Jan-2005  00:06   94,208  Dhcp.pdb

   Path: Public\Common\Oak\Lib\Mipsiv_fp\Retail
   20-Jan-2005  00:06  171,982  Dhcp.lib
   20-Jan-2005  00:06   94,208  Dhcp.pdb

   Path: Public\Common\Oak\Lib\Sh4\Debug
   20-Jan-2005  00:06  280,884  Dhcp.lib
   20-Jan-2005  00:06   94,208  Dhcp.pdb

   Path: Public\Common\Oak\Lib\Sh4\Retail
   20-Jan-2005  00:05  154,534  Dhcp.lib
   20-Jan-2005  00:05   94,208  Dhcp.pdb

   Path: Public\Common\Oak\Lib\X86\Debug
   20-Jan-2005  00:05  276,108  Dhcp.lib
   20-Jan-2005  00:05   94,208  Dhcp.pdb

   Path: Public\Common\Oak\Lib\X86\Retail
   20-Jan-2005  00:05  149,212  Dhcp.lib
   20-Jan-2005  00:05   94,208  Dhcp.pdb

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STATUS

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

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MORE INFORMATION

You only experience this high CPU utilization condition if the DhcpMaxRetry registry value is set to a high number. With the default DhcpMaxRetry registry value, you will receive a message that the DHCP server is unavailable.

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