I have a funny problem with Internet Explorer 8 where I set up a proxy server under Tools - Internet Options - Connections - LAN Settings - Proxy Server and IE basically ignores it.
For example, if I set up the proxy server to use (Random IP here) 245.245.245.245:80 and then go to a website such as whatismyip.com, it still shows my ip instead of the ip of the proxy.
To add further confusion, this only happens sometimes(!!)
Any ideas appreciated Regards Adam
If it only happens sometimes then my first thought would be that the proxy server is maybe only properly working sometimes. Are you reviewing the logs on the proxy server to see what happens? Using tools like wireshark to see what traffic the browser is sending, and where to?
Are you always setting the proxy IP or you are using a PAC file?
In this latter case, if the browser cannot download the PAC file, it tries a direct connection.