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) 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.