Webi Timeout (Launchpad or Rich Client)

Dear experts,

I am not being able to increase timeout. I am on SBOP 4.0 SP8.1.

I followed all the guidelines from

http://help.sap.com/businessobject/product_guides/boexir4/en/xi4sp8_aa_admin_en.pdf

and

http://vynesolutions.wordpress.com/2013/04/19/configuring-business-objects-4-0-session-timeout-settings/

restarted BO servers / Tomcat.

Nothing changed. It still gives me a 20 minutes timeout instead of hte desired 45 minutes.

Thanks in advance for your help,

Kind regards,

André Oliveira