On newer version of Outlook, to fix the Outlook not connected to exchange issue in the latest version of Outlook on a Mac computer, carry out the steps given below.
Clearing the Outlook cache could solve the Outlook not connected to exchange issue, but you have to be watchful. If the data on Outlook and the Exchange server are not synced, then you might lose your data. So make sure to back up the Outlook data before clearing the cache. Now proceed with the steps given below.
The steps to troubleshoot the Exchange server connection issue in Office 2011 are as follows: