Microsoft released hotfix for Windows Server 2008 R2 and Windows 7 fixing password change mechanism. MSA’s passwords are updated by default every 30 days (may be changed in registry at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NetLogon\Parameters). When password expires and is changed by computer, Kerberos and NTLM provider are not notified correctly so old password would be used which results in Authentication Failure.
Hotfix is available at Microsoft website: http://support.microsoft.com/kb/2494158
Advertisements
