Discovery for XenApp Server (Linux) is not successful

When running discovery for xenapp servers following error would be displayed in the discovery wizard from the SCOM Console (2012 SP1 CU3): Unexpected DiscoveryResult.ErrorData type. Please file bug report. ErrorData: Microsoft.SystemCenter.CrossPlatform.ClientLibrary.MPAbstractions.WSManUnknownErrorException The WinRM client received an HTTP status code of 403 from the remote WS-Management service. at System.Activities.WorkflowApplication.Invoke(Activity activity, IDictionary`2 inputs, WorkflowInstanceExtensionManager extensions, TimeSpan timeout)…

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