[CR #335792] If the portal session expires before Jaguar authorization cache, you can go into an infinite loop telling the user their session is expired and they have to re-login—because the FWLogin page that tells them this was revalidating the session.
Workaround: Set sessionDuration and com.sybase.jaguar.server.authtimeout to the same values. See “Setting Enterprise Portal and session time-outs” in Chapter 5, “Setting up Security for Enterprise Portal,” in the Enterprise Security Administration Guide for more information.