On your Home screen, tap Settings.
Tap the toggle switch to turn ON Wi-Fi.
Tap your wireless network name (SSID) on the list of Wi-Fi networks and enter your wireless Password.
NOTE: If your wireless network is NOT password protected, tap your router’s wireless network name and your Android smartphone will automatically connect to the network.
QUICK TIP: Passwords are case-sensitive. Tap the Show password check box to make sure you’re typing the password correctly.
Your Android smartphone is now connected to your wireless network. You can now access the Internet.
Connecting your Android tablet to your wireless network