Turn on your router, press and hold the reset button at the back of your router. Hold the button for 15 seconds and router will be set back to default factory settings. Hence, it is set to default log in credentials and it is important to reset Asus router password for security reasons. You can connect your device to the Asus router and set up the network. Click on wireless settings and select new password option. Type the new password and re enter to confirm. Then, log in through the new password.