Gigabit Ethernet not working on Targus USB 3.0 Docking Station

[Badidas]

I spent a significant amount of time on this as well and was able to get it to work so thought I would share. In my case, the LAN driver wasn't recognized at all. I have an Asus Zenbook running Windows 8. Here's what ended up resolving it for me:

1. Downloaded and installed the latest DisplayLink drivers
2. Opened Device Manager
3. Found that Targus Giga Ethernet was shown as a Unrecognized Device
4. Chose to update the driver. Specify a driver and pointed to C:\Program Files\DisplayLink Core Software.

I found my audio driver was in the same state, but I haven't used that so it was not a big issue for me. The same steps fixed that also.