I would probably power off the secondary, and then remove the secondary from the dashboard. Last step is physically remove the device.     @AjitKumar wrote:   However Aaron published a well written document on the functionality of Warm Spare in Meraki.(Worth reading) https://www.willette.works/mx-warm-spare/   I would suggest caution with this guide. There are many incorrect assumptions made, and warm spare does not always work the way the author suggests.  ... View more