I am not from Intel, but network ports at my church are often the first thing to get "zapped" during thunderstorms (ethernet seems to be more sensitive than any other connections). Consider looking at network port LEDs on back of the NUC and/or whatever you are plugging into (switch/router) - if the LEDs don't light then it is probably hardware rather than drivers. My workaround when some PC's built-in port gets "zapped" is to use a USB-Ethernet dongle or Wi-Fi if appropriate (my trouble also happens just as often on the other end such as switch/router/modem, which are typically more expensive to replace).
Appreciate the feedback, but the tests I did already confirmed it's a problem with either the NUC hardware or software, and probably the hardware.
Which led me to a less than enjoyable experience with the Intel support site, which I've documented here: They Have World Class Talent and >>This Support Site?!?
This message was posted by Intel Corporation on behalf of
We apologize for the inconvenience you have experience in our website.
I just send you a PM please check your inbox.
The next questions to ask is: did you try connecting with Wi-Fi on the same NUC? Do the LEDs on the LAN port light up and flash when the cable is plugged in? If not then it is dead. if they do then it is software or your router maybe?. When you installed the new drivers, did you uninstall the old drivers first?