I have a client with a LOB app that I need to exempt from caching. Internet Explorer apparently ignores IP address when determining whether the server is on the local network or not. KB: Internet Explorer Uses Proxy Server for Local IP Address Even if the "Bypass Proxy Server for Local Addresses" Option Is Turned On http://support.microsoft.com/kb/262981 Now, entering in the IP address into the Do not use proxy server for address beginning with: box does work but it gets removed periodically. I think the firewall client is doing this. If so, where in ISA can I add this IP address to the IE configuration it is pushing out? Here's where I've tried to configure it: Networks\Internal, Properties, Web Proxy tab. I added the address to the directly access list. Didn't work. Thanks, Amy