@@ -1093,21 +1093,15 @@ func (c *Controller) Stop() {

 // StartDiagnostic starts the network diagnostic server listening on port.

 func (c *Controller) StartDiagnostic(port int) {

-	c.mu.Lock()

 	c.diagnosticServer.EnableDiagnostic("127.0.0.1", port)

-	c.mu.Unlock()

 }

 // StopDiagnostic stops the network diagnostic server.

 func (c *Controller) StopDiagnostic() {

-	c.mu.Lock()

 	c.diagnosticServer.DisableDiagnostic()

-	c.mu.Unlock()

 }

 // IsDiagnosticEnabled returns true if the diagnostic server is running.

 func (c *Controller) IsDiagnosticEnabled() bool {

-	c.mu.Lock()

-	defer c.mu.Unlock()

 	return c.diagnosticServer.IsDiagnosticEnabled()

 }