When you connect your mobile device to the Cognos server, you have to authenticate. After downloading your reports you can view them for 36 hours without having to re-authenticate.
Re-authentication happens when you reconnect to the server by dragging down the space to refresh your reports, or by browsing your server. Another way to do so is by clicking the icon with the person in at the left bottom corner of your space, and clicking "Authenticate now".
Please note that you can change the default setting of 36 hours in Cognos Administration :
- Open Cognos Administration via Cognos Connection
- Click the mobile tab at the top of the screen
- Click the section "Server configuration" at the left-hand side
- Change the setting called "Maximum number of hours to access mobile local data stored on a device".