Since the release of Google Chrome's latest update some users may experience an issue logging in. You'll receive a message saying "Your login session has expired. Please login again", and if you click OK and try again you'll receive the same message. This is due to the way Chrome is now handling same-site cookies preventing users from logging in. To resolve the issue type or copy and paste chrome://flags in the URL field. In the search field type samesite and disable the 3 same-site related settings.
This is a temporary fix. iDashboards is working on a permanent solution.