In some cases, you may have an existing device that you wish to re-purpose as a replacement. There are two ways to change the identity of this device:
If you have access to the machine via SSH or a screen and keyboard, you can simply uninstall the existing agent, and then following the normal procedure for Replacing a broken device with a new device.
If you only have access via the existing agent, you can replace the certificate "on the fly" and restart the agent remotely
Replacing the certificate
Open the target workgroup and browse to Devices
Open the menu for the broken device and select "Reissue certificate"
Select the option "Download a certificate pack containing the updated certificate"
Click Download
Make sure the replacement device is online
OPTIONAL: If required, change to the workgroup containing the replacement device and browse to Devices
Open the menu for the replacement device and select "Move workgroup"
Click the Browse button and open the Certificate Pack you downloaded in Step 2
Click Move
The replacement device will go offline and then re-appear as the old device
If there are any errors during the process, the changes will roll back and the replacement device will come back online so that you can try again.