I came across a very unique problem today during one of my production deployment.

IIS with dispatcher on Windows Server and AEM 5.6.1

All Set up and networks good, however when hitting some CQ5 page on web server URL, not showing correct content/synced up content.

1. Dispatcher.any, Logs, publish agent , Flush agent, accessed  URL directly on browser.
2. then finally realized DefaultAppPool setting is needed to be increased for this problem to be resolved and it worked.