User cannot connect to ASC data connection within Data Engine, due to the following error message:
Executing command (Select 1).The target principal name is incorrect. Cannot generate SSPI context.The target principal name is incorrect. Cannot generate SSPI context.
The login credentials in the Data Loader service has expired or changed. They need to be updated by the following steps:
Launching the services console from the server
Right-click the DataLoaderService64 and select properties
Select Log On tab
Enter the relevant login credentials from This Account field
Click OK
Restart the Data Loader service.
Note: If you are using our hosted Cloud environment, we can update the login credentials for you.

