Having the same issue, just recently made a thread about this with a list of all my attempted solutions. Feel free to go there and try things that you haven't tried yet, they may work for you. Otherwise, I'm still having troubles here, and it's wasting my free 30 days of gameplay and potential days to level and play with my friends.

http://forum.square-enix.com/ffxiv/t...PUTER-LOCKS-UP