The problem is not about increasing the timeout. I want the user to timeout if they are inactive for 30 minutes. The only disturbing thing here is that once a user is timed out, Instead of taking the user to the custom login page, a popup windows for authentication appears but it does not accept the user credentials. This also makes it harder for the user to close the window as it pops up again.
The user eventually has to kill the browser and then open the report again. His credentials are accepted fine then and everything then works normally
I either want the user to be taken to the custom login page instead of this popup or it should accept the user credentials