Microsoft KB Archive/320507

= Internet Explorer Does Not Retry Bad Proxy Server for 30 Minutes =

Article ID: 320507

Article Last Modified on 11/15/2007

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APPLIES TO

 Microsoft Internet Explorer 5.5 Service Pack 2 Microsoft Internet Explorer 5.01 Microsoft Internet Explorer 5.5 Service Pack 2 Microsoft Internet Explorer 5.5 Service Pack 2 Microsoft Internet Explorer 5.01 Microsoft Internet Explorer 5.5 Service Pack 2 Microsoft Internet Explorer 5.01 Microsoft Internet Explorer 5.01</li> Microsoft Internet Explorer 6.0, when used with: <ul> Microsoft Windows XP Home Edition</li></ul>

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

<ul> Microsoft Windows XP Media Center Edition 2002</li></ul>

<ul> Microsoft Windows XP Tablet PC Edition</li></ul>

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

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

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

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

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

<ul> Microsoft Windows NT Server 4.0, Terminal Server Edition</li></ul>

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

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

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This article was previously published under Q320507

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IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry

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SYMPTOMS
If the network connection to your proxy server is disconnected, browsing does not work, and this behavior is expected. However, after the initial failure, you cannot browse for up to 30 minutes. This may occur although you have re-established a connection to your proxy server.

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CAUSE
This problem may occur after Internet Explorer adds your proxy server to the bad proxy list. A proxy server is added to the bad proxy list when Internet Explorer cannot connect to the proxy server. After a server is added to the bad proxy list, Internet Explorer does not retry it for 30 minutes.

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RESOLUTION
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

After you apply the appropriate fix for your version of Internet Explorer, you can set a custom-retry interval for bad proxy servers under the following registry key:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings

Create a BadProxyExpiresTime DWORD value in this key, and assign a value of 0, 1, or another number to this value. Note that these values are in seconds.

Internet Explorer 6
To resolve this problem, obtain the latest service pack for Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

322389 How to Obtain the Latest Windows XP Service Pack

A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

The English version of this fix for Internet Explorer 6 should have the following file attributes or later:

<pre class="fixed_text">  Date         Time   Version        Size     File name ---  15-Apr-2002  19:31  6.0.2716.1500  582,656  Wininet.dll

Internet Explorer 5.5 Service Pack 2 (SP2)
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix for Internet Explorer 5.5 SP2 should have the following file attributes or later:

<pre class="fixed_text">  Date         Time   Version         Size     File name 25-Apr-2002 11:09  5.50.4916.2500  481,040  Wininet.dll

Internet Explorer 5.01 SP2
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix for Internet Explorer 5.01 SP2 should have the following file attributes or later:

<pre class="fixed_text">  Date         Time   Version        Size     File name ---  25-Apr-2002  14:55  5.0.3502.4856  461,072  Wininet.dll

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STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows XP Service Pack 1.

Additional query words: kbShell

Keywords: kbhotfixserver kbqfe kbbug kbenv kbfix kbnetwork kbshell kbui kbwinxpsp1fix KB320507

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