Crashing when entering world v50d

[Draxiz]

The game was working fine on 2 computers before September 8th patch. Now we did not install September 8th and September 29th patches because we were inactive. Came back and updated with the October 8th v50d patch and now everything loads until you click enter world and at that point it freezes until we get the message "Server not responding". Both computers are on different operating systems with different hardware platforms. We've turned off firewall, antivirus, adjusted resolution settings, tried windowed mode, adjust client settings, and to no avail.
Can anyone help?