Yellow exclamation error is displayed in Device Manager when ThinkPad USB-C Dock is connected to a Microsoft Windows 7 system - ThinkPad - Lenovo Support AE
Lenovo ThinkPad USB3.0 to Ethernet Adapter | TPSTECH.in
System auto wakes if "Wake on Link Settings" is set to "Forced" in Device Manager Ethernet properties - ThinkCentre, ThinkStation, ideacentre - Lenovo Support IL
Network Trashed on My Lenovo W510 And The NIC Driver Will Not Install–So SIMPLE If You Know The Secret – ITProGuru Blog