I started having the same problem with no Ethernet and audio yesterday. It happened after an auto update for displaylink drivers popped up on the screen. I did not click on the update yet it installed anyway. Immediately lost Ethernet connection and audio. Used a tool for a clean uninstall, and reinstalled the old drivers that came with my Dell Super Speed USB 3.0. Everything worked fine for 30 seconds. Auto update again, nothing I could do to stop the process. Lost Ethernet again. I have a Dell convertible 12 which does not come with an Ethernet port. I cannot connect to our company network rendering my laptop useless.
Is anyone at displaylink working on a solution?
Dell XPS convertible 12
Win 8 64bit Pro
Dell Super Speed Dock USB 3.0