Scheduled task is not running for more than 20 min

Hi,

I am using discountasp.net - Windows 2003 - iis6 web155 server for my vb.net application.

I have scheduled a job to execute the following page http://www.gamorris.com/Load_allbills.aspx

which would run for about 3 hrs and i would like to run it daily every 3 hrs .

If I execute that page from my local computer it runs successfully.

But if i run it from discountasp.net, it runs for only 20 min.

I am using
<httpRuntime maxRequestLength="7168" useFullyQualifiedRedirectUrl="true" executionTimeout="86400" />
in my web.config

Pls. help me to resolve this problem at the earliest.

Regards,

Meena