The ANRB worked fine last week before the most recent Windows Updates were installed. The exact same thing that happened to me 2 or 3 years ago that was fixed then with some method of disabling Driver Signing. That it survived restarts seems to have gone away or was disabled with the latest Windows build. That indicates that drivers were an issue then as well. The version of drivers I am using are labeled as 20161222 and were downloaded from the AirNav site this weekend and are the same as have been available for several years.
Now that I have been thinking of this it might have been caused by recent Intel updates. After having the computer off for a few days there were several updates pushed by the Intel Driver & Support Assistant, as there are from time to time. It just so happened that they came around and then I did the Windows Update when they were finished.
If it helps I have Windows 10 Pro v1909, OS Build 18363.535. The hardware is an Intel Hades Canyon NUC with an i7-8705G processor.
I am not saying this is the fault of AirNav, but there is obviously some disconnect between the drivers, the computer and/or Windows 10 that occurred after the latest round of updates.
In the meanwhile I will try and find out the method used to disable Device Signing I used to get it going the last time (and survive restarts) and see if that trick will work again. Using the Shift-Restart method of going into the BIOS GUI is not practical every time I need to restart the computer.
The Bluetooth issue is a Windows/Intel thing and is pretty common. It has been doing this on most hardware I have used as the BIOS does not set up wireless devices, that is handled in the OS. There might be some BIOS setting that loads BT that I have not found however. The fact remains that if the drivers, hardware and Windows played nicely together then it would not be necessary to force the drivers to load in the first place.