I had a similar problem, have you tried check the box off, select Apply, then OK. Then go back in, check the box on, Apply and OK. Then try to browse ... if that works then the next question is are you using McAfee? Regards, Carmelo -----Original Message----- From: Henrik Nordstrom [mailto:henrik@xxxxxxxxxxxxxxxxxxx] Sent: Tuesday, August 01, 2006 2:36 PM To: eric.watters@xxxxxxxx Cc: squid-users@xxxxxxxxxxxxxxx Subject: Re: XP IE 6.x Machines Ignoring Proxy - Squid 2.5.14 On Tue, 2006-08-01 at 10:27 -0400, eric.watters@xxxxxxxx wrote: > 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. They should not. Reasons I can think of is if something is making the auto discovery unreliable in your network, or maybe the IE version you have deployed is buggy and doesn't do the auto discovery correctly. I would suggest you monitor your DNS and DHCP traffic to see if there is any odd patterns related to the proxy discovery. Also monitor traffic to the server(s) serving the PAC file (but as it works with manual PAC config it's the problem is most likely not here). Maybe this will shed additional light on the problem. Regards Henrik