6.4.7.0
Installed Logitech Unifying Receiver on Dell XPS 8500 Special Edition to shoulder the keyboard and mouse duties formerly borne by the Wi-Fi Adapter.
The Wi-Fi adapter seems to be malfunctioning:
- Can't maintain connection to keyboard and mouse
- Can't maintain connection to host machine
I've filed a warranty replacement ticket with Intel and expect to hear from them by tomorrow or next Monday. In the meantime I've disabled the Wi-Fi Adapter's Bluetooth functionality in Device Manager.