If you delete a CPE device, the basic settings are kept on it. You can re-register a remote CPE without using ZTP.
When re-registering a CPE device, you cannot use two-factor authentication. If you want to use two-factor authentication, register your CPE device using ZTP.
The CPE device re-registration scenario involves the following steps:
Connect to the CPE device over SSH. To do so, specify the IP address and enter the credentials of the CPE device. Then run the following command:
firstboot && reboot
Create and configure a CPE template. For details on managing CPE templates, see Managing CPE templates. You can use the created CPE template to configure other CPE devices.
Disconnect and reconnect the CPE device power cable to have the CPE device reset and connect to the orchestrator. If the connection is successful, the CPE device is displayed in the orchestrator web interface with the Unknown status.
Manually register the CPE device. When manually registering the CPE device, assign the created CPE template to it and select whether the CPE device must automatically turn on after registration. A registered device has the Registered status and is in the Enabled or Disabled state. For details on managing CPE devices, see Managing CPE devices.
If, when manually registering the CPE device, you specified that it must not be enabled automatically, turn on the CPE device. An enabled CPE device has the Registered status and is in the Enabled state.