DPR-ERR-2088 The requested Server Group \'\' does not exist

Product:
Cognos BI 10.1.1
Windows 2008 R2

Symptom:
When you go to the administration dialog in Cognos Connection you get a error message.
DPR-ERR-2088 The requested Server Group '<name>' does not exist

Possible Cause:
One of the BI servers in the server group does not have all correct service set to true.
Check that the following IBM Cognos service are active:
Delivery service enabled
Event Management enabled
Presentation service enabled

Solution:
1.Open Cognos configuration on the Cognos BI server
2.Check the Cognos service - component properties
3.Set all component properties to true.
4.Save the configuration
5.Start the service
6.Surf to Cognos connection
7.Remove the server group name from the BI dispatchers

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