Microsoft KB Archive/829190

= IGMP join message takes too long to fall back to V2 support =

Article ID: 829190

Article Last Modified on 5/27/2005

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APPLIES TO


 * Microsoft Windows CE .NET 4.1

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SYMPTOMS
Joining an IGMP broadcast session takes several minutes.



CAUSE
Microsoft Windows CE .NET 4.1 always uses the Internet Group Management Protocol (IGMP) version 3 (v3) protocol. If the network routers or servers are not programmed to detect IGMP v3, they ignore the request. Windows CE .NET 4.1 will then try to send an IGMP version 2 (v2) join message after about 2 minutes.



Hotfix information
A supported software update is now available from Microsoft as Windows CE 4.10 Core OS QFE 829190. 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 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 --  Path: Signed 15-Oct-2003 22:32  4.1.3.1015      1,612,416  Wincepb41-031015-kb829190-armv4.exe 15-Oct-2003 22:32  4.1.3.1015      1,612,416  Wincepb41-031015-kb829190-armv4i.exe 15-Oct-2003 22:32  4.1.3.1015      1,608,320  Wincepb41-031015-kb829190-armv4t.exe 15-Oct-2003 22:32  4.1.3.1015      1,624,704  Wincepb41-031015-kb829190-mips16.exe 15-Oct-2003 22:32  4.1.3.1015      1,657,472  Wincepb41-031015-kb829190-mipsii.exe 15-Oct-2003 22:33  4.1.3.1015      1,657,472  Wincepb41-031015-kb829190-mipsii_fp.exe 15-Oct-2003 22:33  4.1.3.1015      1,673,856  Wincepb41-031015-kb829190-mipsiv.exe 15-Oct-2003 22:33  4.1.3.1015      1,673,856  Wincepb41-031015-kb829190-mipsiv_fp.exe 15-Oct-2003 22:32  4.1.3.1015      1,559,168  Wincepb41-031015-kb829190-sh3.exe 15-Oct-2003 22:32  4.1.3.1015      1,559,168  Wincepb41-031015-kb829190-sh4.exe 15-Oct-2003 22:32  4.1.3.1015      1,460,864  Wincepb41-031015-kb829190-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   Version            Size    File name --  Path: 031015_kb829190 15-Oct-2003 21:50                      8,449  Wince .net 4.1_qfe_readme_kb829190.htm

Path: 031015_kb829190\Public\Common\Oak\Lib\Armv4\Debug 06-Oct-2003 21:25                  1,759,886  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Armv4\Retail 06-Oct-2003 21:24                  1,238,222  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Armv4i\Debug 06-Oct-2003 21:24                  1,762,456  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Armv4i\Retail 06-Oct-2003 21:24                  1,240,550  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Armv4t\Debug 06-Oct-2003 21:23                  1,626,364  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Armv4t\Retail 06-Oct-2003 21:23                  1,224,446  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Mips16\Debug 06-Oct-2003 21:26                  1,778,482  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Mips16\Retail 06-Oct-2003 21:26                  1,141,390  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Mipsii\Debug 06-Oct-2003 21:25                  1,778,482  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Mipsii\Retail 06-Oct-2003 21:25                  1,253,262  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Mipsii_fp\Debug 06-Oct-2003 21:27                  1,778,622  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Mipsii_fp\Retail 06-Oct-2003 21:26                  1,253,504  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Mipsiv\Debug 06-Oct-2003 21:29                  1,804,644  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Mipsiv\Retail 06-Oct-2003 21:29                  1,266,020  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Mipsiv_fp\Debug 06-Oct-2003 21:28                  1,804,786  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Mipsiv_fp\Retail 06-Oct-2003 21:28                  1,266,264  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Sh3\Debug 06-Oct-2003 21:27                  1,509,720  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Sh3\Retail 06-Oct-2003 21:27                  1,105,238  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Sh4\Debug 06-Oct-2003 21:28                  1,509,122  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\Sh4\Retail 06-Oct-2003 21:28                  1,101,676  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\X86\Debug 06-Oct-2003 21:23                  1,460,090  Ip.lib

Path: 031015_kb829190\Public\Common\Oak\Lib\X86\Retail 06-Oct-2003 21:22                  1,027,526  Ip.lib



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
This fix adds an option to specify the default IGMP version to use when first trying to join. By default, this is still IGMP v3. To change the default to IGMP v2, add the IGMPVersion registry key to your build image.

If the value does not exist, Windows CE .NET 4.1 uses IGMP v3 to connect to a router.

If the value is set to dword:2, Windows CE .NET 4.1 uses IGMP v1 to connect to a router.

If the value is set to dword:3, Windows CE .NET 4.1 uses IGMP v2 to connect to a router.



IGMP will send out a V3 Join message and wait 125 seconds before attempting to fall back to V2.

Keywords: kbbug kbfix kbqfe KB829190

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