I have several .ASP pages within an IIS/NT4 SP6a server. They work fine without a firewall, but 'hang' when the firewallis in place. Microsoft say all traffic is travelling down port 80, so its the firewalls fault. 3Com say a port outside of 80 is being used, so its not their firewall.
Anybody else come across this beauty of a problem?
ASP pages should be sent as plain HTML to the client via port 80, unless you have configured your web server to use a different port. My first guess would be to check that the firewall is configured to allow requests into port 80 and route them to the proper machine.