A Remote Access Server Does Not Answer After the Server Disconnects from a Session (824405)


The information in this article applies to:

  • Microsoft Windows CE .NET 4.2

SYMPTOMS

The remote access server does not answer incoming calls after the remote access server disconnects from a session.

Note Some modems do not experience this behavior.

CAUSE

By default, initialization commands are sent to a modem without any delay between commands. However, some modems require more time to process a command before the modem is ready to receive a new command.

RESOLUTION

Hotfix Information

A supported software update is now available from Microsoft as Windows CE 4.20 Core OS QFE 824405. 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 How to locate core operating system fixes for Microsoft Windows CE Platform Builder products

Hotfix Replacement Information


This hotfix does not replace any other hotfixes.

File Information

The English version of this package has the file attributes (or later) that are listed in the following table. 
   Date         Time   Version       Size    File name
   --------------------------------------------------------------
   18-Sep-2003  17:36  4.2.3.916    858,728  Wincepb42-030916-kb824405-armv4.exe
   18-Sep-2003  17:36  4.2.3.916    858,728  Wincepb42-030916-kb824405-armv4i.exe
   18-Sep-2003  17:36  4.2.3.916    871,016  Wincepb42-030916-kb824405-mipsii.exe
   18-Sep-2003  17:37  4.2.3.916    871,016  Wincepb42-030916-kb824405-mipsii_fp.exe
   18-Sep-2003  17:37  4.2.3.916    875,112  Wincepb42-030916-kb824405-mipsiv.exe
   18-Sep-2003  17:37  4.2.3.916    875,112  Wincepb42-030916-kb824405-mipsiv_fp.exe
   18-Sep-2003  17:36  4.2.3.916    850,536  Wincepb42-030916-kb824405-sh3.exe
   18-Sep-2003  17:36  4.2.3.916    850,536  Wincepb42-030916-kb824405-sh4.exe  
   18-Sep-2003  17:36  4.2.3.916    830,056  Wincepb42-030916-kb824405-x86.exe
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                      Size    File name
   --------------------------------------------------------------

   Path: Public\Common\Oak\Lib\ARMV4\Debug
   11-Sep-2003  15:24                    623,654  Unimodem.lib

   Path: Public\Common\Oak\Lib\ARMV4\Retail
   11-Sep-2003  15:24                    250,208  Unimodem.lib

   Path: Public\Common\Oak\Lib\ARMV4I\Debug
   11-Sep-2003  15:24                    624,194  Unimodem.lib

   Path: Public\Common\Oak\Lib\ARMV4I\Retail
   11-Sep-2003  15:24                    250,250  Unimodem.lib

   Path: Public\Common\Oak\Lib\MIPSII\Debug
   11-Sep-2003  15:24                    640,198  Unimodem.lib

   Path: Public\Common\Oak\Lib\MIPSII\Retail
   11-Sep-2003  15:24                    256,384  Unimodem.lib

   Path: Public\Common\Oak\Lib\MIPSII_FP\Debug
   11-Sep-2003  15:24                    640,236  Unimodem.lib

   Path: Public\Common\Oak\Lib\MIPSII_FP\Retail
   11-Sep-2003  15:24                    256,442  Unimodem.lib

   Path: Public\Common\Oak\Lib\MIPSIV\Debug
   11-Sep-2003  15:24                    645,874  Unimodem.lib

   Path: Public\Common\Oak\Lib\MIPSIV\Retail
   11-Sep-2003  15:24                    258,898  Unimodem.lib

   Path: Public\Common\Oak\Lib\MIPSIV_FP\Debug
   11-Sep-2003  15:25                    645,912  Unimodem.lib

   Path: Public\Common\Oak\Lib\MIPSIV_FP\Retail
   11-Sep-2003  15:24                    258,956  Unimodem.lib

   Path: Public\Common\Oak\Lib\SH3\Debug
   11-Sep-2003  15:25                    570,570  Unimodem.lib

   Path: Public\Common\Oak\Lib\SH3\Retail
   11-Sep-2003  15:25                    231,452  Unimodem.lib

   Path: Public\Common\Oak\Lib\SH4\Debug
   11-Sep-2003  15:25                    570,418  Unimodem.lib

   Path: Public\Common\Oak\Lib\SH4\Retail
   11-Sep-2003  15:25                    230,638  Unimodem.lib

   Path: Public\Common\Oak\Lib\X86\Debug
   11-Sep-2003  15:24                    573,134  Unimodem.lib

   Path: Public\Common\Oak\Lib\X86\Retail
   11-Sep-2003  15:23                    214,590  Unimodem.lib

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article.
This hotfix introduces the following new registry value to provide a delay between commands that are sent to a modem:

[HKEY_LOCAL_MACHINE\ExtModems\<modemname>] "CmdSendDelay"=DWORD:<delay>

where the <delay> value is between 0 milliseconds (ms) and 500 ms. The maximum value that is permitted by this hotfix is 500 ms.

If the CmdSendDelay value is not present, no delay is introduced between commands. If the CmdSendDelay value is greater than 500 ms, the value of 500 ms is used.

The CmdSendDelay value is read from the registry during modem enumeration. Therefore, if you add or change the CmdSendDelay, you generally have to reset the device.

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

Modification Type:MinorLast Reviewed:5/27/2005
Keywords:kbBug kbfix kbQFE KB824405 kbAudOEM
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