Please find the attached patch to fix the RM #1165 - Too many request to update dashboard graphs when server is disconnected.
If I disconnect the server, it doesn't stop trying to get data until I refresh the browser by clicking on another node that causes it to reload.
If I then click back on the server node, it doesn't redraw the dashboard and start displaying new data upon reconnect. I have to change nodes again before it will respond to the re-connection.