DPR-ERR-2009 A request to authenticate the user in Content Manager failed

Symptom
After launch of IBM Cognos 8 Connection the error message appears.

Problem
After launch of IBM Cognos 8 Connection the following error message appears:
Cognos 8 Help
DPR-ERR-2009 A request to authenticate the user in Content Manager failed.
Details:
DPR-ERR-2082 An error has occurred. Please contact your administrator. The complete error has been logged by CAF with SecureErrorID:2009-06-02-11:35:31.378-#77 OK

Symptom
After launch of IBM Cognos 8 Connection the error message appears.

Cause
When Cognos 8 service was starting, there was a problem with the server network connection.

Solution
Launch IBM Cognos Configuration and restart the IBM Cognos 8 Service, using the Restart icon at the top.