On the Oracle Application Server side, this is how I have had to adjust the timeout setting....go to the following location(s)
\\<jasservername>\e$\product\10.1.3.1\OracleAS_1\j2ee\dvj2ee\applications\dv81\webclient\WEB-INF\web.xml
Do this for each path code/container. i.e. DV, PY, PD, PS, etc
WEB.XML doc – scroll down to where it looks like below and add the text that says session timeout. The value can be set to what you like and its value is in mins, so in my example the session timeout is 2 hours.
...
<servlet>
<servlet-name>MOViewerServlet</servlet-name>
<display-name>MOViewerServlet</display-name>
<servlet-class>com.peoplesoft.e1.container.MafletServiceContainer</servlet-class>
<init-param>
<param-name>maflet.name</param-name>
<param-value>MOViewerServlet</param-value>
</init-param>
</servlet>
<session-config>
<session-timeout>120</session-timeout>
</session-config>