注册失败的原因。具体有如下原因：

· An internal error occurred on the controller：控制器内部错误。

· Failed to obtain basic device information：获取设备基本信息失败。

· The structure of the packet for basic device information is invalid：设备基本信息报文结构不合法。

· The device is not added to the controller：设备未添加到控制器中。

· Device is not authorized：设备license未授权或过期。

· The device did not report its model information：设备未上报设备款型。

· Device type and ESN does not match：设备上报设备款型与esn不匹配。

· The device does not report MAC addresses or the MAC address format is incorrect：设备未上报mac或mac格式不规范。

· The device is online：设备已在线。

· The device is not in the trustlist：设备不在白名单中。

· The reported device form is inconsistent with that of the controller：上报的设备形态和控制器不一致。

· The device ESN does not match the ESN on the controller：设备esn和控制器上esn不匹配。

· Online devices with the same ESN exist：存在相同ESN的在线设备。

· Unknown register failure reason：未知原因。