Sessions are used to maintain a stateful HTTP connection. When a session state is enabled for your application, a user receives a unique session ID on their first request to a Web page. Generally, this session expires if the user does not refresh or request a page within the specified time-out period. As per your site's requirement, you can increase or decrease this time-out value.
1. Log in to your VPS via RDP. Please refer to how to connect VPS using RDP for more details.
2. Click on Start -> Administrative Tools -> IIS.
3. Click on the website name and open the ASP feature from the IIS group.
4. Expand Session Properties under Services and, as per requirement, modify the Time-Out value [Default Value is 00:20:00 (HH:MM:SS)].
5. From the Actions Pane, click on Apply link to save the changes.
Note: It is not recommended to set a large session timeout value for the Windows Hosting server.
