Upgrading the Controller Consult the Ruckus Support website on a regular basis for updates that can be applied to your Ruckus network devices. CAUTION: Although the software upgrade process has been designed to preserve all controller settings, Ruckus strongly recommends that you back up the controller cluster before performing an upgrade. Having a cluster backup will ensure that you can easily restore the controller system if the upgrade process fails for any reason. CAUTION: Ruckus strongly recommends that you ensure that all interface cables are intact during the upgrade procedure. CAUTION: Ruckus strongly recommends that you ensure that the power supply is not disrupted during the upgrade procedure.