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WindowsUpdateClient ignores WinHTTP proxy settings each morning

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  • Have a secured data center environment that utilizes a whitelisted proxy for all servers; the firewall denies direct TCP connections so using the proxy is the only method of getting outside.  

    I've configured the proxy settings in IE and then used netsh to configure the proxy system-wide.  IE works fine, Windows Update when executing manually works fine through the proxy for checking for updates and downloading the updates; have had zero issues installing Windows Updates since the server was deployed live.

    Every morning, there's an event ID 16 warning in the System event log as follows:

    "Unable to Connect: Windows is unable to connect to the automatic updates service and therefore cannot download and install updates according to the set schedule. Windows will continue to try to establish a connection."

    This is also mirrored in the windowsupdate.log file.

    The proxy logs on the proxy server have no entries at all for this time period (roughly 4:00 am each morning), so it's not like the proxy is unavailable.

    I'd like to either fix this or disable this Windows Update check as it's sending alerts every morning needlessly and obviously I'd like to keep the alerts as quiet as possible.

     

     

     

    26 ianuarie 2012 16:44

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  • Information referenced in this link may help you diagnose and resolve the incident you are facing. You may also want to consider re-posting your questions to the appropriate Microsoft forums dedicated to Windows Server / desktop such as this one here.

    Hope this helps. Thanks!

     


    TechNet Forum Moderator (Unified Communications) - http://www.leedesmond.com
    29 ianuarie 2012 04:41
    Moderator
  • Hi,

    It seems your question is a windows server issue. Please post your question to windows server forum that you can get more help:

    http://social.technet.microsoft.com/Forums/en-US/category/windowsserver


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

    31 ianuarie 2012 05:59
    Moderator