Users with ISA Firewall Client still required to login
I'm running ISA 2004 Standard on Windows 2003 R2 and using the Firewall Client on Windows XP computers. I'd like to be able to accomodate Web Proxy users and Firewall Client users, but I'm having some trouble at the moment.
Right now, the web proxy clients seem to work fine. They're prompted to login to the ISA server before getting through the firewall. However, computers with the Firewall Client are also being prompted to login and that's NG. I was under the impression that authentication should be transparent to end users running the client. I have the Client installed and have manually pointed it at the ISA Server. The client successfully connects to the server and is able to reconfigure a users web browser automatically (I've tested), but again, when a user logs in to a domain computer with the client installed and opens a web browser, that client is still prompted for a username and password.
I know I'm missing something, but I can't figure out what! Any suggestions?