Configuration Manager with Jason Lewis
SCUP Catalogs Best Practices
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Note: This is only for SCUP 3.0 or 4.0. With SCUP 4.5 this is no longer an issue.
I’ve received a couple of questions regarding System Center Updates Publisher (SCUP) when behind a proxy server. Some customers have reported problems downloading catalogs and updates when behind a proxy server. To clarify, SCUP uses the proxy server settings set in Internet Explorer but is only able to connect through the specified proxy server when it allows anonymous access. Therefore if your proxy server requires authentication you cannot use SCUP to download catalogs or publish updates to Windows Server Updates Service (WSUS). You will get an error similar to “(407) Proxy Authentication Required”. To manually workaround this issue you can do the following…
Hope this helps, if you have any questions please let me know.