great support....:mad: 10 Days..and no response...this is the right solution to make business!

We have done our best on the limited information you have given. There are no log files for us to check to know what could have gone wrong, and just photos of the issue, not describing how the 3 additional displays are connected (are these DisplayLink too?)

My guess is that it is a USB 3.0 driver issue on the PC, The USB 3.0 hub in the dock or the DisplayLink issue. Do other devices continue to work in the dock when this situation occurs? Can you recover by restarting the DisplayLink Manager service?

Please post the logs, gathered when in the error state, as described here:

http://kb.displaylink.com/269

Wim