Get the Wireless Router and connect an Ethernet cable to your router on one side and on another side to your PC or Laptop.
Plug in your wireless router to the power supply.
Wait a few seconds to start the router, and make sure the light of the router gets turned on.
Open the Web browser (Recommended, Chrome) on your PC and configure the router.
Visit the default IP Address of your router (You can search the default Gateway of your router in Google or find it in the back panel too).
From the Particular IP Address of that router, you need to sign in there.
Enter the sign-in username and password. Depending on your router you can find the default username and password. As default, many routers have a username as admin and a password as the password.
Get signed in with login details and go to the Network Name, and enter the unique SSID Name for your Wifi.
Set the new Password from the Network Password setting. Choose the encryption method as WPA2 Personal.