![]() ![]() No hard disk on the device, and the operation of recording and hard disk configuration will fail. Input or output parameters in the SDK API is NULL, or the value or format of the parameters does not match with the requirement. The assigned serial port does not exist on the device. The input data is not supported by the device for remote configuration.Įxecuting command on the device is timeout. The data sent to the device is illegal, or the data received from the device error. NET_DVR_ORDER_ERROR NET_DVR_OPERNOPERMIT NET_DVR_COMMANDTIMEOUT Timeout when receiving data from the device. The device is off-line, or connection timeout caused by network. ![]() SDK version is not matching with the device.įailed to connect to the device. The number of connection with the device has exceeded the max limit. There is no corresponding channel number on the device.
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