Thank you for the post. I will forward your inquiry to the NUC support team.
Please try uninstalling the driver and reinstalling it, you can download the latest LAN driver here:
Also, I found some information that can help you, see it here:
What I did eventually was to uninstall the device and it's driver, the I let windows discover it and install default drivers.
I even didn't bother to install the new drivers, I am now using the default driver found by Windows - maybe it is a good idea to install the new driver, but if it works I am not going to upgrade.
Thank you for the update. And I am glad you NUC is working as it should. If everything is working fine don’t bother on upgrading. If you seen any problems then I will recommend you to do the upgrade. But for right now have fun with your system.