FIX: DHCP module doesn't accept the ACK packet after it sends T1 or T2 renewals in Windows Embedded Compact 7

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Introduction

This article describes an issue in which the Dynamic Host Configuration Protocol (DHCP) module does not accept ACK packets in Windows Embedded Compact 7. An update is available to resolve this issue. Before you install this update, all previously issued updates for this product must be installed.

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Symptoms

You have the October 2013 Monthly Update or a later monthly update installed on a Windows Embedded Compact 7-based device. When there is a short lease time and a high DhcpMaxRetries count, the DHCP module does not accept the ACK packet after it sends the REQUEST for T1 or T2 renewals.

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Resolution

Software update information

A supported software update is now available from Microsoft as Windows Embedded Compact 7 Monthly Update (February 2015).

Note This Windows Embedded Compact 7 Monthly Update is available for download from the following Microsoft Download Center website:

Windows Embedded Compact 7 updates

Prerequisites

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

Restart requirement

After you apply this update, you must perform a clean build of the whole platform. To do this, use one of the following methods:

On the Build menu, click Clean Solution, and then click Build Solution.
On the Build menu, click Rebuild Solution.

You do not have to restart the computer after you apply this software update.

Update replacement information

This update does not replace any other 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. 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 item in Control Panel.

Files that are included in this update package

File name	File size	Date	Time	Path
Dhcp.dll	131,072	20-Feb-2015	05:10	Public\Common\Oak\Target\X86\Retail
Dhcp.map	203,482	20-Feb-2015	05:10	Public\Common\Oak\Target\X86\Retail
Dhcp.rel	36,887	20-Feb-2015	05:10	Public\Common\Oak\Target\X86\Retail
Dhcp.dll	249,856	20-Feb-2015	05:10	Public\Common\Oak\Target\X86\Debug
Dhcp.map	290,579	20-Feb-2015	05:10	Public\Common\Oak\Target\X86\Debug
Dhcp.rel	95,003	20-Feb-2015	05:10	Public\Common\Oak\Target\X86\Debug
Dhcp.dll	163,840	20-Feb-2015	05:10	Public\Common\Oak\Target\X86\Checked
Dhcp.map	234,554	20-Feb-2015	05:10	Public\Common\Oak\Target\X86\Checked
Dhcp.rel	57,738	20-Feb-2015	05:10	Public\Common\Oak\Target\X86\Checked
Dhcp.dll	159,744	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv5\Retail
Dhcp.map	196,980	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv5\Retail
Dhcp.rel	49,067	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv5\Retail
Dhcp.dll	339,968	20-Feb-2015	05:10	Public\Common\Oak\Target\Armv5\Debug
Dhcp.map	293,192	20-Feb-2015	05:10	Public\Common\Oak\Target\Armv5\Debug
Dhcp.rel	76,617	20-Feb-2015	05:10	Public\Common\Oak\Target\Armv5\Debug
Dhcp.dll	204,800	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv5\Checked
Dhcp.map	228,751	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv5\Checked
Dhcp.rel	69,831	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv5\Checked
Dhcp.dll	155,648	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv6\Retail
Dhcp.map	196,980	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv6\Retail
Dhcp.rel	49,067	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv6\Retail
Dhcp.dll	339,968	20-Feb-2015	05:10	Public\Common\Oak\Target\Armv6\Debug
Dhcp.map	293,189	20-Feb-2015	05:10	Public\Common\Oak\Target\Armv6\Debug
Dhcp.rel	76,617	20-Feb-2015	05:10	Public\Common\Oak\Target\Armv6\Debug
Dhcp.dll	204,800	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv6\Checked
Dhcp.map	228,754	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv6\Checked
Dhcp.rel	69,831	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv6\Checked
Dhcp.dll	155,648	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv7\Retail
Dhcp.map	196,980	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv7\Retail
Dhcp.rel	49,067	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv7\Retail
Dhcp.dll	339,968	20-Feb-2015	05:10	Public\Common\Oak\Target\Armv7\Debug
Dhcp.map	293,192	20-Feb-2015	05:10	Public\Common\Oak\Target\Armv7\Debug
Dhcp.rel	76,617	20-Feb-2015	05:10	Public\Common\Oak\Target\Armv7\Debug
Dhcp.dll	204,800	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv7\Checked
Dhcp.map	228,670	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv7\Checked
Dhcp.rel	69,802	20-Feb-2015	05:11	Public\Common\Oak\Target\Armv7\Checked
Dhcp.dll	188,416	20-Feb-2015	05:11	Public\Common\Oak\Target\Mipsii\Retail
Dhcp.map	194,483	20-Feb-2015	05:11	Public\Common\Oak\Target\Mipsii\Retail
Dhcp.rel	155,903	20-Feb-2015	05:11	Public\Common\Oak\Target\Mipsii\Retail
Dhcp.dll	380,928	20-Feb-2015	05:10	Public\Common\Oak\Target\Mipsii\Debug
Dhcp.map	290,653	20-Feb-2015	05:10	Public\Common\Oak\Target\Mipsii\Debug
Dhcp.rel	386,685	20-Feb-2015	05:10	Public\Common\Oak\Target\Mipsii\Debug
Dhcp.dll	241,664	20-Feb-2015	05:11	Public\Common\Oak\Target\Mipsii\Checked
Dhcp.map	226,358	20-Feb-2015	05:11	Public\Common\Oak\Target\Mipsii\Checked
Dhcp.rel	216,252	20-Feb-2015	05:11	Public\Common\Oak\Target\Mipsii\Checked
Dhcp.dll	188,416	20-Feb-2015	05:11	Public\Common\Oak\Target\Mipsii_fp\Retail
Dhcp.map	194,483	20-Feb-2015	05:11	Public\Common\Oak\Target\Mipsii_fp\Retail
Dhcp.rel	155,903	20-Feb-2015	05:11	Public\Common\Oak\Target\Mipsii_fp\Retail
Dhcp.dll	380,928	20-Feb-2015	05:10	Public\Common\Oak\Target\Mipsii_fp\Debug
Dhcp.map	290,652	20-Feb-2015	05:10	Public\Common\Oak\Target\Mipsii_fp\Debug
Dhcp.rel	386,685	20-Feb-2015	05:10	Public\Common\Oak\Target\Mipsii_fp\Debug
Dhcp.dll	241,664	20-Feb-2015	05:11	Public\Common\Oak\Target\Mipsii_fp\Checked
Dhcp.map	226,358	20-Feb-2015	05:11	Public\Common\Oak\Target\Mipsii_fp\Checked
Dhcp.rel	216,252	20-Feb-2015	05:11	Public\Common\Oak\Target\Mipsii_fp\Checked
Dhcp.dll	143,360	20-Feb-2015	05:10	Public\Common\Oak\Target\Sh4\Retail
Dhcp.map	197,462	20-Feb-2015	05:10	Public\Common\Oak\Target\Sh4\Retail
Dhcp.rel	84,302	20-Feb-2015	05:10	Public\Common\Oak\Target\Sh4\Retail
Dhcp.dll	290,816	20-Feb-2015	05:11	Public\Common\Oak\Target\Sh4\Debug
Dhcp.map	293,284	20-Feb-2015	05:11	Public\Common\Oak\Target\Sh4\Debug
Dhcp.rel	155,671	20-Feb-2015	05:11	Public\Common\Oak\Target\Sh4\Debug
Dhcp.dll	184,320	20-Feb-2015	05:11	Public\Common\Oak\Target\Sh4\Checked
Dhcp.map	229,316	20-Feb-2015	05:11	Public\Common\Oak\Target\Sh4\Checked
Dhcp.rel	109,967	20-Feb-2015	05:11	Public\Common\Oak\Target\Sh4\Checked