SCOM 2012 SP1 Web console Sigout Automatically in Every 30 Minutes

Hi,

We made Configuration changes in Web.config file from webhost folder of SCOM.

Value Changed from "30" to "0" in Parameter : AutoSignOutInterval.

File Name : Web.config
Path: C:\Program Files\System Center 2012\Operations Manager\WebConsole\WebHost\web.config

APPLICATION CONNECTION SETTINGS

            Schema:
           
            <connection autoSignIn="True" autoSignOutInterval="0">
                <session encryptionKey="SessionEncryptionKey" tokenAlgorithm="SHA256">
                    <overrideTicket encryptionKey="OverrideTicketKey" timeout="20"

serverClockSkew="0"/>
                    <cookie name="SCOMAuth" path="/" domain="" />
                </session>
                <managementServer name="localhost"/>
            </connection>

After this settings we are getting the same , every 30 minutes User is signed out automatically from web console.

The above changed made from the following links
http://social.technet.microsoft.com/Forums/systemcenter/en-US/86d63f1f-96ac-4f70-a0d9-4a17437ffe30/web-console-signed-out-automatically

What else missed from that .

Thanks in Advance.

Thanks & Regards, Kesa_Kara