We also injected the Windows 8.1 & Windows 10 drivers, recreated the LiteTouch boot image and it appears to be working now.
Not sure why this is any different from the 5th gen devices?
Hello Amy Intel,
The 5th Gen NUC was the NUC5i3RYK & NUC5i5RYK.
Between these NUC's there are several differences, here you can check them ARK | Compare Intel® Products and also the differences between the processor in each NUC, ARK | Compare Intel® Products. Now, in this specific scenario it is hard to tell but the difference might have been the BIOS version installed.
Thanks for this, but the only detail it gives for the LAN is "10/100/1000", which isn't much good as far as drivers.
I have been checking the Technical Product Specification for these products and in regard to the Gigabit Ethernet Controller this is what I found; for the 6th Gen NUC the Gigabit Ethernet Controller is an Intel I219V Gigabit Ethernet Controller (10/100/1000 Mb/s) while for the 5th Gen NUC the Gigabit Ethernet Controller is an Intel I218-V Gigabit Ethernet Controller (10/100/1000 Mb/s).
Here you can double check that information;