For who dont wanna read all the post.
This problem is caused cause of network adapter settings so if you have installed hamachi, virtual machines or use a VPN connection follow this steps:
1-Go to Control Panel.
2-Network and Internet.
3-Network and sharing center.
4-Change adapter settings.
5- Here you have to disable/remove hamachi, virtual machines or VPN connection.
Steam discussion here (Spanish): http://steamcommunity.com/app/291650/discussions/0/620712364028647611/