Failed auto update retrieval of third-party root list sequence number from: http: //www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootseq.txt
Error: This operation returned because the timeout period expired.
For more information, see Help and Support Center at http: //support.microsoft.com
This behavior is expected on and Pre-Vista Windows OS ( Windows 2003 R2 and earlier ) SEP clients that do not have access to Microsoft's Windows Update servers. With the release of Windows Vista, Microsoft changed the Windows Security Center (WSC) component to require security software that interacts with the WSC to use new digital signatures. These signatures are included as a part of the Kernel in Windows Vista and newer. Pre-Vista Operating Systems must check the validity of the certificate via Microsoft's Windows Update each time a signed component is executed.
There are several reasons clients may be unable to validate the new certificates. Some environments may be affected by more than one. Known issues which cause this behavior are:
General Internet connectivity failures to Windows Update
Missing/incorrect proxy settings for the Computer account on affected clients
Switch/router/proxy/network application configurations preventing access to Windows Update
Restricted access to Windows Update through Group Policies
To prevent this issue, affected clients will need to either have unrestricted access to Windows Update, or have the "Disable Automatic Root Certificates Update" policy applied in Group Policy
Troubleshooting connectivity issues:
General Internet connectivity issues need to be verified and resolved before this issue can be resolved.
If necessary, ensure all affected systems are able to access Windows Update via their built-in Computer accounts. SYSTEM account proxy settings can be configured through the Windows registry, or Windows Group Policy. Please consult Microsoft Support for further information on available options to configure this Windows setting.