A network management system may receive, via a wide area network (WAN), a request to register a pending network device with an entity. The network management system may, in response to receiving the request to register the pending network device with the entity, determine whether the pending network device is able to communicate, via a local area network (LAN) associated with the entity, with a registered network device that is already registered with the entity. The network management system may, in response to at least determining that the pending network device is able to communicate via the LAN with the registered network device, register the pending network device with the entity.