Fail to register a device with Nebula device MAC/SN on Nebula

[Deleted User]

If the device is purchased from a second-hand market or platform, the device should've already been registered/in-used/inherited by another Nebula account. Please check the solution on each post to solve the registration issues.

1. Device has already been registered.
   https://community.zyxel.com/en/discussion/19566/what-does-device-has-already-been-registered-mean
2. This device already registered to another account.
   https://community.zyxel.com/en/discussion/18830/i-cannot-register-my-new-device-because-this-device-already-registered-to-another-account

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