Nearly all wireless access points and routers allow an administrator to manage their WiFi network through a special administrative account. This account provides complete "superuser" access to the device's configuration utilities with a special username and password.
Manufacturers set both the account username and password at the factory. The username is often simply the word admin or administrator. The password is typically empty (blank), the words "admin," "public," or "password," or some other simple word.
To improve the security of a Wi-Fi network, you should change the administrative password on your wireless access point or router immediately when installing the unit. The default passwords for popular models of wireless network gear are well-known to hackers and often posted on the Internet. Most devices do not allow the administrative username to be changed, but if yours does, seriously consider changing this name as well.
Finally, to maintain home network security in the future, continue changing this administrative password regularly, not just one time. Many experts recommend changing passwords every 30 to 90 days. Use words that would be very difficult for others to guess.
To Change the Password :-
1. Type 192.168.1.1 in browser.
2. Input ID and password as admin.
3. A page will open, from Left side menu, select Wireless > Security
4. You will find an option to choose encryption (WEP, WPA2 etc), choose WPA2. Give password of your choice.
5. Again from Left side menu, choose the last option and you will find an option to save and reboot. Some modems have it in the wireless page itself.
If still facing problems.Do write me in Comments. love have Your FeedBack