We are currently investigating what is causing this to happen for a small percentage of the userbase for The Walking Dead, and we apologize for the inconvenience. There's a few fixes outlined in the technical support FAQ here: http://www.telltalegames.com/forums/showthread.php?t=29368
If those fixes aren't working for you, please reply to this thread and let me know me know what kind of hardware or software security your system is using. I need the following information:
1: Are you using a software firewall? If so, have you allowed access to the game?
2: Do you have anti-virus software? If so, who makes it? Is it up to date? Is it blocking access to our game?
3: Does the game work if you run it while disconnected from the Internet?
I don't need DXDiag information or any other system specific info apart from the information requested above. Please, no discussion of the issue in this thread. It's to gather information only.