Doesn't work

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I use TV on a portable PC with Win10; the newwork adapter is a "Realtek PCle GBE Family Controller". Everything is fine.

I also use this computer via a Targus Giga Ethernet Docking Station with a Display Link driver v. 8.2.1629.0. In this case neither TV connects to anything nor it is reachable from anything.

This is happening since a few weeks after it worked fine for 6 months. I can't understand what's changed that prevents me from using the docking station.

I have the log of both cases (ok and not-ok) but I don't know how to upload them.

Best regards, Stefano