Our web filtering software has its own server on our network. The software is all web based so we access the program through the web. The first part of the web address starts out with its IP address. The web address works fine when you type in its IP or name as the first part of the address.
When you turn on proxy in IE, only entering the address by name works and not IP.
Servers are running Windows 2003. Workstations are XP Pro running IE 8.
I am completely lost on why this is happening!