Problem: HP ProBook 450 G3 wireless works, but wireless button stays on, illuminated white, and won’t turn off.
Cause: BIOS setting “Lock Wireless Button” ignorantly checked while exploring the BIOS settings. By default it is unchecked.
1) Enter BIOS
2) Advanced section
3) Built-in Device Options
4) Uncheck the "Lock Wireless Button" check box.