[Nebula] What should I do if “Device is already registered by another user”? (switch version)

Zyxel_Melen

Scenario:

Suppose you've purchased a used switch and wish to add it to your Nebula site, or you've unregistered your switch from Nebula cloud mode and want to transfer it between organizations (where each organization belongs to a different account). You encounter the message: "Device is already registered by another user. Add the device by scanning its QR code using the Nebula Mobile APP." However, the Nebula QR code is missing from the switch or its box.

Configuration:

1/ Power up the switch and isolate it from the network.

2/ Press the restore button on the switch for more than 7 seconds to have the switch automatically reboot and restore the factory default configure file.

3/ Connect your PC to the switch.

4/ Access the switch's local web GUI by entering its default IP address: 192.168.1.1 and use the default credentials to log in: username - "admin" and password - "1234”.

If you're unable to access 192.168.1.1, it's possible that your computer hasn't acquired the correct IP address. In this case, manually assign an IP address to your computer that's in the same subnet as the switch. Detailed steps can be found in note 2.

Firmware version v4.70:

Firmware version v4.80:

In addition, some models have more than one mode, please click Standard Mode.

5/ Click exit to skip wizard.

Firmware version v4.70:

Firmware version v4.80:

6/ Ignore the warning message.

Firmware version v4.70:

Firmware version v4.80:

7/ Click the QR code hyperlink on the dashboard Status > Device Information > Hybrid Mode for Firmware version v4.70:

For Firmware version v4.80, please click the NCC discovery button:

8/ The web GUI will display its QR code and you can use Nebula Mobile APP [Android] / [iOS] to scan the QR code.

Firmware version v4.70:

Firmware version v4.80:

Note:

1/ If your switch isn’t isolated in the network, it might get IP from the gateway/firewall DHCP server. To verify the switch's IP address, use ZON or the DHCP table on your gateway/firewall. Then, follow the steps mentioned above.

2/ Steps to manually assign an IP address to your computer that's in the same subnet as the AP

2.1 Go to Network connection > Right click on the using network card icon and choose "Properties”

2.2 Select Internet protocol version 4 (TCP/IPv4) and click "Properties',

2.3 Assign your computer IP same subnet with the AP > Click OK

For instance, the AP's IP is 192.168.1.2/24, set your computer's IP to 192.168.1.200/24.