I also just got my Celeron NUC and it's been the most painful PC I've had to install Windows on.
Kept getting blue screen of death after 8.1 x86 installed, which only went away after installing latest BIOS.
Installed all the drivers but I can't seem to get Wifi to appear in network connections and also doesn't show up in Device Managers.
Ran Wireless Manual Diagnostics tool which fails on first step with message that "Wireless hardware is not bound to transport driver".
Any suggestions to try to help me rule out dodgy hardware ? Thanks in advance.