.pac file problem

[nephilim]

Is IE detecting the PAC file on the W7 machines?

Sounds daft I realise but from what you describe it sounds like its not even detecting the PAC file

[DT2]

the-practical-proxy-pac-file-guide.pdf^^ exactly that.
If you can push it by DNS/DHCP then it may yield some progress, or at the very least an answer.

DT

[FN-GM]

Is IE detecting the PAC file on the W7 machines?

Sounds daft I realise but from what you describe it sounds like its not even detecting the PAC file

the-practical-proxy-pac-file-guide.pdf^^ exactly that.
If you can push it by DNS/DHCP then it may yield some progress, or at the very least an answer.

DT

As i said before GPO working fine, IE is picking it up and setting it. If i get a standalone machine and set it manually i get the issue. I only got problems when the LEA started tinkering.

[FN-GM]

Have you tested with the pac file boiled right down to the minimum? Say:

function FindProxyForURL(url, host)
{
return "PROXY 10.112.5.193:80";
}

That might help diagnose whether the problem had anything to do with your particular pac code.

Just tried this and no chage. Thanks anyway.

[DT2]

Then I imagine all that is left is routing?
can the system ping/route to the IP to which the pac file is associated?

Sat here scratching my newly cultivated beardyness.... thinking this is probably already on your list.

Daz.

[Willott]

You say they added in load balancing - they haven't as part of that restructured the IP range (ie there's a new load balanced IP)? Simple thing I know... but netsweeper and LEAs do the strangest things!

[nephilim]

actually routing is the sensible thing to check. well picked up @DT2. I would check that to be sure.

[Jollity]

Just tried this and no chage. Thanks anyway.

Sorry I never noticed this thread got updated.

At this point I would try using a packet sniffer like Wireshark or Microsoft Network Monitor. I would try to catch one of the HTTP GET messages going out for which no web page was returned. I would then compare that to a successful GET message, for example sent out with the proxy entered manually (which you said always worked).