After update 16, my dndclient was crashing at the 'Welocome to Eberron' loading screen.
Here is what did the trick for me. A 'clean boot' of windows.
Details in this link: http://support.turbine.com/link/port...oot-of-Windows
After a few tries and reboots I finally pin point the service that was causing the issue.
It was Forceware Web interface and Forceware Intelligent Application Manager.
Those are part of the Nvidia Access manager.
here is a link:
http://www.file.net/process/nsvcappflt.exe.html
Hope this will help all the others with the same issue