FIRST DELETE YOUR ADDRESS YOU JUST POSTED. NEVER POST THAT!
You probably need to allow C2 to get through your firewall. Google how to do it, or i think Ashley describes how to do it in the manual.
You changed preferences from local host to that address?
Your computer needs to be online with wifi. Private not public. At least public never has worked for me.
Open your mobile browser and enter the address on your computers web browser when in preview.
Be careful to get it exact. Some browsers will try to fill in a different address.