Office 2011 applications may experience frequent hangs and crashes. Update to Mac OS X 10.11.1 or higher and the latest version of Microsoft Office 2016.
There have been some reports that this may deactivate Office's license. Office 2016 applications may experience frequent hangs and crashes. Install Pulse Secure 5.1.5 or later, available from IUware. Pulse Secure may not be able to establish a VPN connection and may report Keychain errors.