FIX: "You have attempted to access a restricted URL" error when you try to access OWA and are close to the idle session time-out period

You try to access the Microsoft Outlook Web App (OWA) through Microsoft Forefront Unified Access Gateway 2010. If you are close to the idle session time-out period, you do not see the session time-out warning message. Instead, you receive the following error code 109 message:

Additionally, you may receive the following error code 152 message:

Note This problem occurs only if you have an HTTP redirect trunk and if users access Forefront Unified Access Gateway by using this trunk instead of going direct to the HTTPS trunk.