"Cannot connect to Microsoft Dynamics CRM server" error occurs when attempting to connect Microsoft Dynamics CRM for Microsoft Office Outlook

When you attempt to connect Microsoft Dynamics CRM for Microsoft Office Outlook to a CRM on-premises organization, you encounter the following error:

"Cannot connect to Microsoft Dynamics CRM server because we cannot authenticate your credentials. Check your connection or contact your administrator for more help."
The username and password you provided are not correct.
Make sure the username and password you provided are correct. Verify you can access the same URL with your web browser and the same username and password. If you cannot access the Microsoft Dynamics CRM web application with the same username and password, please contact your Microsoft Dynamics CRM administrator.

If you are still encountering issues connecting CRM for Outlook to your CRM Online organization, a diagnostic tool is available to help diagnose the issue:

CRM for Outlook Configuration Diagnostic
More information
The following error can be found in the log file:

14:48:50|   Info| Error connecting to URL: {0} Exception: {1}| https://contoso.contoso.com/XRMServices/2011/Organization.svc, System.ServiceModel.FaultException: The server was unable to process the request due to an internal error.  For more information about the error, either turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the <serviceDebug> configuration behavior) on the server in order to send the exception information back to the client, or turn on tracing as per the Microsoft .NET Framework SDK documentation and inspect the server trace logs.
   at System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate method, Object[] args, Boolean synchronous)
   at System.Windows.Forms.Control.Invoke(Delegate method, Object[] args)
   at System.Windows.Forms.Control.Invoke(Delegate method)
   at Microsoft.Crm.Outlook.ClientAuth.ClientAuthProvider`1.RetrieveUserCredentialsAndSignIn(Control parentWindow, Boolean retryOnError, IClientOrganizationContext context)
   at Microsoft.Crm.Outlook.ClientAuth.ClientAuthProvider`1.SignIn(AuthUIMode uiMode, IClientOrganizationContext context, Control parentWindow, Boolean retryOnError)
   at Microsoft.Crm.Application.Outlook.Config.DeploymentsInfo`1.DeploymentInfo`1.LoadOrganizationsInternal(AuthUIMode uiMode, Control parentWindow)
   at Microsoft.Crm.Application.Outlook.Config.DeploymentsInfo`1.DeploymentInfo`1.LoadOrganizations(AuthUIMode uiMode, Control parentWindow, IClientAuthProvider`1 authenticatedProvider)
   at Microsoft.Crm.Application.Outlook.Config.DeploymentsInfo`1.InternalLoadOrganizations(DataCollection`1 orgs, AuthUIMode uiMode, Control parentWindow)

outlook client configure
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Article ID: 3089574 - Last Review: 02/03/2016 19:44:00 - Revision: 2.0

Microsoft Dynamics CRM for Microsoft Office Outlook

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