Immediately after I login and click on any menu option, I am taken back to the login page and I see a message that my authentication has expired. What does this mean?

Your web browser is not properly configured to accept cookies. You should turn on cookies in your web browser, try to use a different web browser (for example, switch to Firefox if you are currently using Chrome), or try to use a different computer. Detailed instructions can be found if you go to the site and enter the URL “cookie_help.aspx” in place of “default.aspx” in the address bar of the browser, when you are on the front page of the site

FAQ Type: 

SONA