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: