How do you make Remember Me Work?
Clicking the “Remember Me” box tells the browser to save a cookie so that if you close out the window for the site without signing out, the next time you go back, you will be signed back in automatically. Make sure that you have your browser set to remember cookies, or this function will not work.
How do I add remember me to my login page?
Go to User Registration > Settings > General > Login Option and click on 'Enable Remember Me'.