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ITS Alert - Resolved: Windows Patch, for Windows 7, Causing Kerberos Authentication Issues

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Resolved: Windows Patch, for Windows 7, Causing Kerberos Authentication Issues

Last updated on May 16, 2014 at 2:16PM

Update on May 16, 2014 at 2:16PM

At this time ITS believes the issue is connected to Windows 7 systems built with an automated configuration system. ITS is still working to determine what the build incompatibility is, and will update the IT community via Network of People and other appropriate channels. This alert is being closed because a remediation method was deployed, and a workaround has been published.

Update on May 14, 2014 at 12:06PM

If a user does not want to uninstall Windows Patch KB2871997, it is recommended users authenticate into their Windows environment using userid@dce.psu.edu instead of dce.psu.edu/userid .

ITS is still investigating the cause and this alert will be updated as more information is available.

Original Alert

It was discovered this morning (May 14) that Windows Patch KB2871997, released on Tuesday, May 13, 2014, is causing some Windows 7 computers to be unable to authenticate with Kerberos credentials. This patch has been removed from the Windows Software Update Service (WSUS) Central Service.

This patch should only be uninstalled if a user is experiencing trouble logging in with dce.psu.edu credentials or using resources that require Kerberos authentication credentials (such as PASS). Otherwise, please leave the patch installed on your Windows 7 computer.

For more information on how to remove this patch through the Windows Update Control Panel, please visit the following Microsoft URL: http://windows.microsoft.com/en-us/windows/remove-update#1TC=windows-7 .

ITS is still investigating the cause of the incompatibility and will update this alert when more information becomes available.

For more information, please contact IT Service Desk (ITServiceDesk@psu.edu).


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Impact Information

  • Incident Type:
    General Information
  • Services affected:
    Miscellaneous
    Windows Software Update Service (WSUS)
  • Locations affected:
    All locations
  • Began on:
    May 14, 2014 at 8:00AM
  • Issue Resolved:
    May 16, 2014 at 2:10PM