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Trustwave Knowledge Base

Home » Knowledgebase » Legacy Products » Secure Web Gateway » HOTFIX: Authentication failure withMS AD 2008 R2 when using...

HOTFIX: Authentication failure withMS AD 2008 R2 when using windows 7/vista Client

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This article applies to:

  • SWG 10.x
  • Windows Vista or Windows 7 clients

Symptoms:

  • Trying to configure authentication against Microsoft AD 2008 R2.
  • With Windows XP clients, authentication is successful when you disable NTLM V2 enforcement.
  • However with Windows 7 or Windows Vista clients, you see "Authentication failure" in the weblog viewer.

Causes:

  • This problem occurs because of an additional security check in Windows Server 2008 and Windows Vista.
  • This problem is limited to clients that use NTLMv2 authentication without extended security.

Resolution:

To resolve this issue , you can install and configure a Hotfix that Microsoft provides for this issue. See the following Microsoft Knowledge Base article:

To contact Trustwave about this article or to request support:

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