Troubleshoot Session Time-out Issue
To remedy the session time-out issue, you'll need to clear the data in your browser.
For Internet Explorer:
Go to 'Tools' >> 'Internet Options' >> 'Delete browsing history on exit' >> 'Delete'.
Before clicking 'Delete', make sure the following boxes are checked:
'Preserve Favorites website data'
'Temporary Internet files and website files'
'Cookies and website data'
For Google Chrome:
Go to 'Tools' >> 'Settings' >> 'Advanced' >> 'Clear browsing data' >> select the the length of time you prefer, and click 'Clear data'.