-Have you tried changing your rendering card? Open>Direct.
-Try uninstalling FH and reinstalling.
-Can you play any other multiplayer games like world of warcraft, league of legends, etc.?
If you cannot, it could be something related to the connection itself.
As the last option I would call to technical support of your internet service provider.
Try to:
*Try to log in with another account. (Just in case; so you will know if the problem is related to the account.)
*Try to log in with another computer.
*Try to log in with another internet connection.
If nothing works I suggest to contact a staff or mod about this problem. They probably know more and can help you.
Staff: http://www.feral-heart.com/index.php?option=com_content&view=article&id=28&Itemid=52 (http://www.feral-heart.com/index.php?option=com_content&view=article&id=28&Itemid=52)
Yes, I've tried changing my render card and I've reinstalled FH multiple times. I can play other online games. There is another internet I can connect to, but it won't allow me to go online for some strange reason.
Are you already using another person's/local wifi connection? Sometimes local wifi is slow and will allow games such as FH to work. Is your internet slow at all?
Like Oreo said, I'd call a your internet service provider.