Server 2011 WSUS Error: Unexpected Error Reset Server Node

I am getting the following error when going to the update services on SBS 2011.  Any idea how to resolve this?

The WSUS administration console has encountered an unexpected error. This may be a transient error; try restarting the administration console. If this error persists,

Try removing the persisted preferences for the console by deleting the wsus file under %appdata%\Microsoft\MMC\.

System.NullReferenceException -- Object reference not set to an instance of an object.


Stack Trace:
   at Microsoft.UpdateServices.UI.SnapIn.Scope.ServerSummaryScopeNode.ResetScopeNode()
Who is Participating?
DonNetwork AdministratorCommented:

did you installed the patch mmc 3.0....

verify the eventvwr and post any errors related to this
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