If you have logged into Gameforge’s game Tera in Europe while using a VPN (or a proxy), you’ll get banned. You’ll be unable to connect even if you disable and uninstall the VPN. There is no solution client side, since it’s the server who’s blocking you. You can double check and try to login to your account via the web : http://en.tera.gameforge.com/news/index . You will be greeted with the same error when you try to log in : Network error! – A connection could not be made. Please check your network settings and adjust any proxy or firewall settings.
You will not be able to contact Gameforge’s support, because you can’t login. I found a way to contact them through a different account, but I am still waiting for an answer.
I strongly advice everyone who wants to start playing Tera to use the American servers. These servers are run by En Masse who don’t have this crazy policy.