Solving Session Errors ASP.net

Session Variables expiring before Session Timeout asp.net
Increasing the session timeout

Before you read further I recommend reading the below 3 links:

Code:

http://blogs.msdn.com/david.wang/archive/2005/09/19/Why_do_I_lose_ASP_Session_State_on_IIS6.aspx
http://msdn.microsoft.com/en-us/library/ms178586.aspx
http://idunno.org/articles/277.aspx

Where to look and what to change

Web.config file

Make sure the below 3 nodes are there under system.web

Code:

<system.web>
   <!-- setting a 120 minute timeout.Timeout is in minutes -->
   <sessionState timeout="120" />

   <!-- Make sure you have executionTimeoutThere -->
   <httpRuntime executionTimeout="9000" maxRequestLength="10240"/>   
   

   <!-- No Debug ex. with c#-->
   <compilation debug="false" defaultLanguage="c#">
</system.web>

Quote :

Reset IIS

IIS

Application Pool

§ Open IIS Manager

§ Expand Application Pools > DefaultAppPool

§ Right-click DefaultAppPool and view its Properties

OR

§ Open IIS Manager

§ Expand Application Pools > ApplicationNamePool

§ Right-click ApplicationNamePool

§ and view its Properties


§ On the Performance tab, change the value for Shutdown worker processes after being idle for (time in minutes) to a number that is greater than or equal to the session timeout defined in web.config or disable it.

$Configure the application pool to only recycle after 120 minutes of idle-time.


Virtual Directory


§ Open IIS Manager

§ Expand Websites

§ Expand Website / Select Virtual Directory

§ Right Click > Properties

§ Click Virutal Directory Tab

§ Click Configuration

§ Click Options Tab

§ Click Options Tab

$ Check All

$ Increase Session Timeout and ASP script TimeOut


Website

§ Open IIS Manager

§ Expand Websites

§ Select Website (ex. Default Website)

§ Right Click > Properties

§ Increase Connection Timeout to 900

$ Apply