Recently we have had a handful of clients report when they use the CRM for Outlook client it is not working. It shows connected but data not showing up. We found the following via Microsoft for a workaround to this issue.
Dynamics CRM 365 not showing in Outlook
The Dynamics for Outlook add-in relies on customized roaming home pages in order to render webpages within Outlook. The October 2017 Microsoft Outlook security update disables roaming home pages in Outlook to address a significant vulnerability with the application, and as such, inadvertently causes the add-in to fail.
All versions of the Microsoft Dynamics for Microsoft Outlook add-in family are affected by this issue. This includes Microsoft Dynamics CRM 2016, 2015 and 2013 for Microsoft Office Outlook. This also affects all versions of the Dynamics CRM organization that the add-in is connecting to.
The Outlook Security update versioning information is found below:
Security Update for Microsoft Outlook 2010 (KB4011089) 32-Bit Edition
Security Update for Microsoft Outlook 2010 (KB4011089) 64-Bit Edition
Security Update for Microsoft Outlook 2010 (KB4011196) 32-Bit Edition
Security Update for Microsoft Outlook 2010 (KB4011196) 64-Bit Edition
Security Update for Microsoft Outlook 2013 (KB4011178) 32-Bit Edition
Security Update for Microsoft Outlook 2013 (KB4011178) 64-Bit Edition
Security Update for Microsoft Outlook 2016 (KB4011162) 32-Bit Edition
Security Update for Microsoft Outlook 2016 (KB4011162) 64-Bit Edition
Dynamics CRM 365 not showing in Outlook Issue Resolution:
Due to this security update resolving multiple significant vulnerabilities within the Microsoft Outlook application, it must remain installed. In order to re-enable roaming home pages as a workaround while a permanent resolution is developed, a registry key must be added to the local client machines running the Microsoft Dynamics for Outlook application. This key can be installed through direct registry edit.
Important:
The DWORD value for this key is being set to 2 in order for it to be defined in a future security update. The following registry key is dependent on the version of Microsoft Outlook installed on the computer.
Microsoft Outlook 2016:
[HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Security] “EnableRoamingFolderHomepages”=dword:00000002
Microsoft Outlook 2013:
[HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Security] “EnableRoamingFolderHomepages”=dword:00000002
Microsoft Outlook 2010:
[HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Security] “EnableRoamingFolderHomepages”=dword:00000002