testing a website on localhost using webpagetest

[pmeenan]

The setup that you have sounds fine. "The other one" is where the tests would run from and would test the software on your development machine. You just need to make sure that the IIS instance on your dev machine is reachable over the LAN and that it isn't blocked by any firewall rules.

You don't need any of the WPT software on the dev machine unless you want to split it up and run the web UI on the dev machine and only have the other machine do the testing.