I'm sorry, I am confused. Are you attempting to connect to the server (aka log in with your character), or are you at the update screen. If you are having an issue on the update screen most likely your computer or network is not configured correctly to connect to the Torrent Servers (a lot of different software blocks those ports, as they are perceived as potentially harmful, or used for illegal activities...).
You may want to research what software you may have installed that could be conflicting with the application, and either disable or reconfigure it (obviously reconfiguring would be the best choice).
SE should look into port analysis software that they can put in at launch to determine if people do not have their system configured correctly, it would alleviate this issue, though I imagine that is low on their list of priorities right now.
If you are getting the error at the character select screen, that would most likely be an issue on their side, and you would need to contact them to determine a resolution (by the way, they do have a fairly decent Support site that can walk you through most of these issues).