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SharePoint - User prompted for credentials on first request after application pool restart on Windows Server 2008 when using NTLM

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Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
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Article ID: 2288443 - Last Review: August 1, 2010 - Revision: 3.0

SharePoint - User prompted for credentials on first request after application pool restart on Windows Server 2008 when using NTLM

SYMPTOMS

When using NTLM authentication, the first person to access a website after an application pool restart will be prompted for credentials.

CAUSE

This is caused by the Kernel-mode authentication feature in Windows Server 2008 and greater builds.

RESOLUTION

Disable Kernel-mode authentication on the Windows Server 2008 machine using this command:

%windir%\system32\inetsrv\appcmd set config -section:windowsAuthentication -useKernelMode:false

MORE INFORMATION

This is a known issue for Windows 2008.

You receive the "Bugcheck 0x7E in HTTP!UxBinaryToBase64" Stop error message in Windows Server 2008
http://kbalertz.com/Feedback.aspx?kbNumber=2027462 (http://kbalertz.com/Feedback.aspx?kbNumber=2027462)
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use (http://go.microsoft.com/fwlink/?LinkId=151500) for other considerations.

APPLIES TO
  • Microsoft Office SharePoint Server 2007
  • Microsoft SharePoint Foundation 2010
  • Microsoft SharePoint Server 2010
  • Microsoft Windows SharePoint Services 3.0
Keywords: 
KB2288443
       

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