Wi-Fi is great for you to connected with your friend ,but a poorly secured Wi-Fi can put your personal information at risk . You should protect your router password and change the password regularly to protecting your network and your data .If you don’t know I will guild you How to Change Your Wifi Name and Password .
Step 1 : Find Your Router’s IP Address
On a Windows PC, you press Windows Key + R, type “cmd” without the quotes, and press Enter.
Then you type “ipconfig” to find ip of router , it’s “Default Gateway”
Standard router addresses are
- 10.0.1.1 (Apple)
- 10.0.0.1 (Xfinity)
Step 2 : Login your router
You open your browser and type ip of router , ex : 192.168.1.1 , then you type admin , admin
From the menu on the left hand-side of the screen select “Wireless”.
From the sub-menu select “Wireless Settings” to change wifi name , then you click save .
To change the wireless password, select “Wireless Security” from the Wireless sub-menu on the left hand side of the screen. then you click save
I hope you will know how to How to Change Your Wifi Name and Password
Source : How to change wifi password