I made a change in the Web Proxy configuration settings in the Firewall Client tab on the ISA firewall. I clicked the "Configure Now" button on the Firewall client machine, but the changes are not made to the browser. What's up with that?
You need to first update the Firewall client settings on the Firewall client computer by clicking the Test Server or Detect Now button. Then clck the Configure Now button. The Test Server and Detect Now buttons pull the wspad information from the ISA firewall, and then the Configure Now button applies the Web browser settings included in the wspad information.