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.

[HenkD]

I had exactly the same issue. Ethernet driver wasn’t recognized, same for the audio.
I have an ASUS N56 notebook with Dynadock U3.0. I completed the 4 steps above. It worked for both the Ethernet and the audio driver

[jwiese]

I am having the issue on a Surface Pro machine. Both Windows 8 and now Windows 8.1 (RTM) are showing the same signs. It shows as working "Limited Connection" (network glyph with a yellow exclamation on it). I see lights flickering on the back of the device but get no network. Attached is my diag output. Device manager shows all is good and that my drivers are up to date.