Ok.  Let me rephrase what is happening, what we have done, and what I want 
to achieve.  We have the GPO setting the Auto Detect Proxy Setting in IE. 
We don't grey it out, so users CAN uncheck it and go around the proxy. 
When we use the auto detect setting, end users don't always go to the 
proxy.  Debugs on the PIX Firewalls at all remote locations where we are 
forcing the users to use the Proxy Server here in Atlanta via a VPN 
connection indicate that for a period of time the users will initiate web 
connections to the proxy over port 3128.  However,  invariably, the end 
users end up sending traffic directly to the websites and the firewall, 
which doesn't allow users to make calls to say 209.73.186.238, drops the 
traffic.  If I go into the endusers browser and hard code the location of 
the PAC file in their browser, everything works.  But by doing this, they 
won't be able to surf the web unless they are VPN'd into our network or 
they go into their browser settings and remove the PAC configuration and 
that isn't acceptable in our environment.  Our end user population is made 
up almost entirely of Accountants, so they aren't savvy enough to make 
these types of configuration changes.  Additionally, our VP treats the 
endusers with kid gloves and doesn't ask them to do anything IT related no 
matter how remedial.  Having said all of this, what I need to understand 
is why would the browsers ignore the proxy when Auto Detect Settings is 
selected and not ignore the proxy when the location of the PAC is hard 
coded.  From a a layer 1-4 perspective, I can't see where this is network 
related.  Hope this helps.  Thanks in advance for your responses.

Regards,

Eric Watters
Network Engineer
PRG Schultz
Desk: 770.779.3318
Cell:   404.247.0646

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