No problem :)
Trust me its not you, I'm pretty good at networking etc, but for some reason I can't get C2 and my LAN to work. I've tried countless times in the past.
But, my work-a-round suits me better now.
I have my development sites there, my mysql databases, and now my game(s) which I can test to my hearts content.
The preview is great for little changes, because it takes slightly more time to hit the export button and select folder, and wait for it to export - lol. But, at least I am seeing the real game it its exported state vs a preview.
Wamp and Xampp can be a little tricky - have a look at Instant Wordpress. Its a standalone, portable WordPress development environment. It turns any Windows machine into a WordPress development server. It will even run from a USB key. Create a folder in your wordpress directory.
Nice trick: edit your hosts file turning your localhost and ip 127.0.0.1 to a url example.com or I use myactualdomain.dev
Anyways good luck, have fun