Instructions
NOTE: Android is highly customizable and may look different depending on your manufacturer. The steps below may vary for different devices.
CAUTION: The "Reset Bluetooth & Wi-Fi" settings option will reset all Wi-Fi networks and Bluetooth connections on your device.
1) Open the Settings app.
2) Scroll to the bottom and tap System.
3) Scroll to the bottom and tap Reset options.
4) Tap Reset Bluetooth & Wi-Fi.
5) Tap Reset.
Outcome
All Bluetooth and Wi-Fi settings on your device have been reset.