@joe_intel, I'm having the same issue that everyone has been reporting:
My setup: NUC BOXD54250WYKH1
Wireless/Bluetooth card: Intel AC 7260
OS: Windows 8.1 Update x64
BIOS: Latest (v 26)
Symptoms:
- Bluetooth works if I physically disconnect and connect the power cord.
- Otherwise it shows up as a failed USB device with error code 43
All released Bluetooth drivers by intel haven't helped. Its encouraging that you mention a new driver is going to be released soon. I hope it fixes this specific problem that folks on this thread have been describing for the last 6 months.