If not, try this from the web.
"How to connect your Samsung Galaxy Note 2 to Wi-Fi
To connect to Wi-Fi on the Galaxy Note 2, follow these steps:
From the Note home screen, navigate to and tap on the Settings app.
Once inside settings, scroll down and tap Wi-Fi. It should be near the top.
Next, switch Wi-Fi networking on.
After a few moments all of the nearby Wi-Fi hot spots will pop-up for you to see.
Select the Wi-Fi network you wish to use and tap connect."
locked padlock on wifi icon,cannot get online ,please help