Changing the SSID and/or Wifi Password:
From your web browser, go to 192.168.1.1
Default Password: admin
On the right side, click on Wireless Settings
On the Wi-Fi Settings page, you can change both the network name, along with the wireless password. Once changed, click APPLY to save your changes.
To make sure your device starts using the new settings, click RESET CONNECTION at the top of the page after you have saved your settings. This will reboot your device and once it comes back up, your changes will be in place.