How do I reset my WiFi password

On your Wi-Fi router usually, and how to do that varies by Wi-Fi router vendor and model.

If the network password has already changed, you’ll usually get a message when you try to join the network that’ll allow you to re-enter the password, or you can use Settings > Wi-Fi and select the network ℹ️ and view its information, and then forget and re-add the network.