If in your Duo Device Options you select a default and say always use this device, there will not be a 'remember me' option available. Duo will always use the device you selected at each login. Go back to the settings and uncheck that box (to enable the 'Remember Me' option for web applications). Also, you may have tight privacy settings in your browser - so that it may be unable to create a cookie to track your 'Remember Me' selection. Contact the HUIT Service Desk for support in confirming your browser privacy settings.