We found an Outlook (2011) for Mac is not updating emails in time -- sometimes lagging up to 2 hours. How do I know that? Well, usually in the right-hand lower corner there is an Exchange Server connection status and "All folders are up to date" or "Last update: mm/dd/yy time." Instead of 'All folders are up to date' it shows Last Update is about two hours ago.
We are in a small LAN with Gb network so there is no excuse for the LAN issue.
Our Exchange version is 14.03.0174.001
What could be wrong?