Latitude 7370 wifi/ethernet issues

We have one user using a Latitude 7370 plugged into a docking station.  For the past week or two this user's laptop will (while connected to the docking station) will switch between wifi & ethernet changing icons searching for networks.  This laptop has Windows 7 Enterprise sp1 64 bit.

I installed the Intel 8260 dual band wifi drivers and I turned on Adapter switching.  It seems to work properly for a couple hours but then starts switching.  Yesterday I noticed in the networking properties there were 7 Lan connections "Lan Connection 1, Lan Connection 2-7" which I have to try and remove so there is just one wifi connection and one ethernet connection.  Is it an issue with the docking station?

One other question.  We have the power cord going from a power strip to the laptop.  There is a also a usb c connection going from the docking station to the laptop.  Is this connection providing power?