On Mon, 18 Apr 2005, Brett Glass wrote:
When the first request occurs, the Squid proxy downloads the entire file before providing the subrange of bytes to the client (perhaps making the reasonable assumption that it will ask for other portions later). But when the client makes its next request, Squid queries the Windows update server and is told that its current copy of the file is out of date. So, it transfers the entire file AGAIN.
check your range_offset_limit setting. Should be in the default 0 KB setting to prevent this from happening.
Regards Henrik