Purchased Second-Hand Switch Is Still Registered Under Previous Owner's Account

Zyxel_HsiuTe

Question:
I purchased a second-hand switch, but when trying to register it to my organization in Nebula Control Center (NCC), I receive the message: "Device is already registered by another user."
How can I release the device from the previous owner's account?

Answer:
There are two methods to register the device under your account, depending on the condition of the device's QR code label:

If the QR code label on the device is still intact:

1. Download the "Nebula App" on your smartphone.
2. Log in with your Nebula account.
3. Scan the QR code on the device to re-register it to your organization.
4. Reference Guide

If the QR Code Label Is Damaged or Missing:

• Reset the device to factory default settings.
• Use a browser to access the local management interface of the Zyxel device (default IP may vary by product type: switch, AP).
• From the interface, generate or scan the internal QR code to register the device again.

Examples by Product Type:

• Switch:
  Refer to this guide for QR code regeneration:
  Resolve “Device is already registered” – Switch
• Access Point (AP):
  Instructions to generate QR code via device UI:
  Nebula – How to Generate QR Code for Device Registration (AP)

If you encounter any other issues, please help create a post here and tag @Zyxel_CSO , or create a ticket directly to reach us.