thanks that worked....I had as similar issue on my machine. I had the Hyper-v feature installed so I do not know if there was part of the issue or not
Essentially i just had to download the drivers again and re-install it.
Your pretty much have the same board i do so here is the download that i used
https://downloadcenter.intel.com/download/22283/Intel-Ethernet-Connections-CD
I encountered this on my Intel NUC when upgrading to Win 10, it worked like 50/50 then I just threw in a wifi dongle for now. There were no hardware conflicts in system devices section, so I don't know what the deal is.
That is similar to what happened to me, device manager showed no issues, so i figured instead of fighting it for too long, just as easy to re-download the nic drivers and re-install them