Issue
When connecting to Dynamics CRM 2016 using the Nintex Workflow CRM actions in Nintex Workflow for SharePoint 2010, one of the following errors might occur:
Cannot connect to server
or
The Server URL cannot be found
Error Code
"Cannot connect to server" or "The Server URL cannot be found"
Resolution
Microsoft Dynamics CRM 2016 is not supported in Nintex Workflow for SharePoint 2010.
Additional Information
Nintex Workflow 2010 supported versions for Microsoft Dynamics CRM (other than 4.0) include: 2011 and 2013.
Nintex Workflow 2013 supported versions for Microsoft Dynamics CRM (other than 4.0) include: 2011, 2013, 2015, 2016 (up to version 8.2).
Nintex Live Actions supports Microsoft Dynamics CRM Online and Microsoft Dynamics CRM for on-premises under the following versions: 2011, 2013, 2015, and 2016 (up to version 8.2). In order to use Live CRM actions for CRM OnPrem server, ensure the CRM OnPrem is publicly accessible.