To change your WiFi password or network name:
Launch a web browser from a computer or mobile device that is connected to your router’s network.
A login window displays.
Enter the router admin user name and password.
The user name is admin. The password is the one that you specified the first time that you logged in. The user name and password are case-sensitive.
The Dashboard displays.
Select Settings > Wireless Setup.
Enter your new network name in the Name (SSID) field.
Enter your new password in the Password (Network Key) field.
Click the Apply button.
Your settings are saved.