If you cannot open the HDvM - SN secondary window on a Windows PC, the default browser might not be set to one of the supported browsers (Edge, Google Chrome, Internet Explorer). Set the default browser to one of the supported browsers, and then retry the operation.
If Java 7 Update 55 or later or Java 8 Update 5 or later is installed on the management client, execution of the Device Manager - Storage Navigator secondary window application might be blocked. In this case, use the following procedure to change the Java security settings.