Dynamics CRM 2016 SP1 On-Premise CRM App for Outlook

Hi, 

1.  Using CRM 2016 SP1 on-Premise with Exchange 2013 On-Premise

2.  The CRM App for Outlook Link is present under settings

3.  I can see eligable users and I have added the app and says app is installed for Outlook.  Both in OWA and Outlook when I go to manage apps its not listed at all.  

What can I do to troubleshoot this, its a confusing one to fix with the lack of documentation for on-premise.