Click on the symptom you are experiencing to open a set of troubleshooting instructions, to take you through the resolution steps.
(Fig.1 Device Manager "View by connection".)
This leaves only two choices:
If you need to keep Windows 10 as your operating system, you can find a list of compatible Dell docks on the link below:
Alternatively you can rollback to your previous operating system version using the instructions on the link below:
A wireless dock is not support in a pre-OS environment. It needs the following drivers to be installed:
QCA Ethernet driver (815x)
Fresco USB3 Host controller (FL1100)
DisplayLink USB graphics (DL3900)
If you have a different docking station from Dell. You can find out more here: