Knowing how to change your TP-Link router password is important for protecting your WiFi network and preventing unauthorised people from using your internet connection. You can usually change the WiFi password using a phone, tablet, or computer connected to the TP-Link router. Start by connecting your phone, tablet, or computer to the TP-Link router. The exact wording can differ depending on your TP-Link router model and firmware version. Open Wireless SettingsSelect the WiFi networkLocate the password fieldEnter a New WiFi PasswordFind the field containing your current WiFi password and replace it with your new password.