1: Are you using a software firewall? If so, have you allowed access to the game?
Use Win7 built in firewall, shows as ticked for Home/Work Privat and unticked for Public
2: Do you have anti-virus software? If so, who makes it? Is it up to date? Is it blocking access to our game?
Use MS Essentials, up to date and not blocking
3: Does the game work if you run it while disconnected from the Internet?
Runs but still fails to load last saved game on Episode 2 and thinks it is a fresh install