I have an issue while running reports on CRM 2011 with RU 11. The error seen is;
An error has occurred during report processing. (rsProcessingAborted)
Query execution failed for dataset 'DSMain'. (rsErrorExecutingCommand)
Microsoft.Crm.CrmException: An unexpected error occurred. System.ServiceModel.Security.SecurityNegotiationException: A call to SSPI failed, see inner exception. System.Security.Authentication.AuthenticationException: A call to SSPI failed, see inner exception. System.ComponentModel.Win32Exception: The target principal name is incorrect
An unexpected error occurred.
A call to SSPI failed, see inner exception.
A call to SSPI failed, see inner exception.
The target principal name is incorrect
Going through articles on web, they seem to suggest to create SPNs for CRMAppPool Service Account and also change the ‘ApplicationHost.config’ within IIS to set ‘useAppPoolCredentials to True’.
My Query is, my other environment works OK without this setup. Then what could be the root cause of issue on this environment. I can’t seem to find any difference in the setup of the evironments either.
What should I be looking for?