Microsoft KB Archive/331906

= You cannot connect to the Internet after you install Microsoft updates =

Article ID: 331906

Article Last Modified on 9/27/2005

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APPLIES TO

 Microsoft Internet Explorer 6.0, when used with:  Microsoft Windows Server 2003, Standard Edition (32-bit x86)

 Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)

 Microsoft Windows Server 2003, Web Edition

 Microsoft Windows XP Professional</li></ul>

 Microsoft Windows XP Home Edition</li></ul>

 Microsoft Windows Millennium Edition</li></ul>

 Microsoft Windows 2000 Server</li></ul>

 Microsoft Windows 2000 Advanced Server</li></ul>

 Microsoft Windows 2000 Professional Edition</li></ul>

 Microsoft Windows 98 Standard Edition</li></ul>

 Microsoft Windows 98 Second Edition</li></ul>

 Microsoft Windows NT Server 4.0 Standard Edition</li></ul>

<ul> <li>Microsoft Windows NT Workstation 4.0 Developer Edition</li></ul> </li></ul>

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This article was previously published under Q331906

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SYMPTOMS
You cannot connect to the Internet after you install any of the following Microsoft updates: <ul> <li>Internet Explorer 6 Service Pack 1 (SP1)</li> <li>Microsoft Windows XP SP1</li> <li>The hotfix that is described in the following Microsoft Knowledge Base article:

312176 Heavy NTLM Authentication Traffic Occurs Between Internet Explorer and the Proxy Server

</li> <li>The hotfix that is described in the following Microsoft Knowledge Base article:

325662 NTLM Authentication Over an SSL Connection Does Not Work in Internet Explorer 6

</li></ul>

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CAUSE
This problem may occur if you are using a third-party proxy product that uses only basic authentication.

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RESOLUTION
The following file is available for download from the Microsoft Download Center:

Download the Q331906.exe package now.

For more information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

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. <pre class="fixed_text">  Date         Time   Version           Size     File name ---  07-Nov-2002  19:09  6.00.2800.1136    586,240  Wininet.dll

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

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MORE INFORMATION
If you use Microsoft Windows NT Challenge/Response (or NTLM) authentication with Microsoft Internet Security and Acceleration (ISA) Server 2000 or with Microsoft Proxy Server 2.0, you may experience the following behavior after you install the hotfix that is described in this article:
 * You receive incomplete HTML pages.
 * You are randomly prompted for authentication credentials.
 * NTLM authentication traffic may appear in the ISA Server top-ten report.

For more information about this problem, click the following article number to view the article in the Microsoft Knowledge Base:

312176 Heavy NTLM Authentication Traffic Occurs Between Internet Explorer and the Proxy Server

Additional query words: iPlanet Web Proxy Server Sun Microsystems Squid Web Proxy Cache CacheFlow Network Appliance NetCache integrated

Keywords: kbhotfixserver kbqfe kbbug kbfix kbie600presp2fix kbqfe KB331906

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