Can't get into the game after recent updates??

[Sephyrine]

I've not had this problem before. I couldn't login after the update that came on Wednesday two weeks ago. Past that, I've been perfectly fine with logging into the game. But now, as the loading screen is going, after you've selected the character and such, it doesn't load completly. At the end, it shows a message saying "disconnected from server", where I have completly perfect internet connection and I've even tried with ethernet cable connected. Is there something I can do, or is this a bug that's bothering many?