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.