Service Principal Name (SPN) and System Center Advisor
System Center Advisor uses a service principal name (SPN) as a unique identifier for the instance of the service running on the gateway. When you configure your Advisor gateway, the SPN is added to the gateway for authentication with the service. The SPN also enables agents installed on other servers to communicate with the gateway.
If, for whatever reason, the SPN cannot be added to the gateway, you will see one of the following error messages:
Unable to add Service Principle Name for the System Center Advisor gateway service. Agents on your local network will not be able to find this gateway.
Unable to add Service Principle Name for the System Center Advisor gateway service. Agents on your local network will not be able to find this gateway. However, the local agent will be able to connect to this gateway.
To fix this issue, try the following:
Verify that the gateway machine name is no longer than 15 characters (as required by the NetBIOS naming convention).
Use the setspn.exe utility to add the SPN manually. Use the following syntax:
setspn.exe –A “Advisor/<MachineFQDN>” <MachineName>