Displaylink device suddenly not recognised in Windows 7

[jack Pottinger]

We have had 3 screens running fine on a Startech.com USB3DOCKH2DP for over a year suddenly in last 3 days it stopped working.

I have uninstalled and reinstalled drivers numerous times but it now either doesn't detect attached screens or changes resolution for a second and then crashes.

I have updated intel usb drivers as instructed (despite the fact that this was working previously)

See attach customer service tool logfiles