When i am logging into the data-center i get the 2002 message.
Running in Windows 8, then the client becomes unstable, and yet it does not crash, it asks me to terminate. But after i click yes the OS is unable to terminate the client. Very interesting is that after I am unable to kill the program through the task manager. I have to reboot system to get it off. Never had this issue before.

Not only am I unable to reach the character selection screen, but I am also unable to restart the application because the OS sees it running still. It happened only after the patch today, I know this might be an isolated incident, but I made sure the client goes through my Firewalls on both OS and NOD-32 Antivirus, as well as my Network Devices.

Hope this helps figure out whats going on if its on Clients side of things.