Steps to secure WIFI: (Path 192.168.0.1)
Open console by typing 192.168.0.1 in Browser’s address bar.
Enter the user name and password as “User”.
Check the firmware version.
Follow the procedure if required firmware version is available.
Click on Wi-Fi option.
Click on WLAN.
Check the encryption as per below screenshot.
Enter the 10 digits in Key-1 and to click on save button.