$remoteAccessServiceRef = $wsmanConnectionObject.NewReference("SELECT * FROM AMT_RemoteAccessService WHERE Name='Intel(r) AMT Remote Access Service'")
$inputObject = $remoteAccessServiceRef.CreateMethodInput("CloseRemoteAccessConnection")
$outputObject = $remoteAccessServiceRef.InvokeMethod($inputObject)
$returnValue = $outputObject.GetProperty("ReturnValue")