Okay. I uninstalled both drivers, rebooted and installed only the BT drivers. Same results before I even installed the networking drivers. I then installed the network drivers. And the same result. The files I have are: BT_17.1.1406.01_s64.exe and Wireless_17.0.5_s64.exe.
The "Intel Driver Update Utility" says that this version is installed:
17.1.1406.0472
It recommends that this version needs to be installed:
17.1.0 (That's right a previous version.)
The File it downloads is:
BT_17.1.1406.01_s64.exe