V5 Win update - Clients behind firewall not using proxy.

Discussion in 'Windows Update' started by Matt P, Sep 30, 2004.

  1. Matt P

    Matt P Guest

    We have hundreds of Windows XP clients unable to connect to the update site
    using the new V5 win update.

    We use ISA and ISS proxy servers - I have looked at the log files on
    checkpoint NG and it shows clients trying to directly connect to Microsoft
    update without using the proxy - The packets are then obviously dropped as
    there is no rule to allow http traffic from users to access the internet only
    for the proxy. - I have seen several posts with the same problem but no
    difinitive answer - It all worked before V5

    Please help!
    Matt P, Sep 30, 2004
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  2. Hi

    I would guess you need to configure the WinHTTP proxy settings on
    the clients (using e.g. proxycfg.exe).

    Open a command prompt (Start/Run and then "cmd.exe" without the

    Run this command to display current proxy configuration:


    For more help on proxycfg.exe:

    proxycfg -?

    If you configure the client to your proxy "environment" using proxycfg,
    does WU start to work then?
    Torgeir Bakken \(MVP\), Sep 30, 2004
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  3. Response from Matt P:

    I have tryed this for one client and it seems to work, thanks very
    much - Does this mean it needs to be done on every XP client? New
    and old? We have proxy settings entered manually into Explorer,
    does windows not take these settings when connecting to V5 site?

    To avoid configuring all your clients, I would think configuring
    your proxy server to allow anonymous access to the relevant Windows
    Update sites is a better solution.

    More about this here:

    From: Allenh [MSFT] ()
    Subject: Re: Temporary fix for 0x8024402C error
    Date: 2004-09-29 08:45:32 PST
    Torgeir Bakken \(MVP\), Oct 1, 2004
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