Ben,
Just to avoid confusion for others reading this thread, the problems that Rama and Mat have reported before are about the Plugable UD-160-A which is a docking station coming with it’s own LAN port and has a different display device than the UGA-2K-A which is a display adapter only.
We have no doubt you have hit a faulty device. Regarding the LAN issue, we believe it’s completely independent of the Display Adapters problems you’ve been having.
Regards,
Lampros