Configure authentication expiration
The Relying party cookie is used for the authenticated user on the Relying party (.AspNet.Cookies). 
To configure expiration, perform the following:
    - Navigate to Administration » Settings » Advanced.
- In the left pane, expand Authentication and click RelyingParty.
- If you want to enable or disable sliding expiration, use the Authentication cookie sliding expiration checkbox. 
 By default this setting is enabled.
- You can also change the default expiration time in Authentication cookie expiration time input field.
- Save your changes.