Hello greetings ... I have an analog Hikvision 16ch DVR, the equipment is working but for some time it began to lose the total configuration of all the programmed parameters, this is done and can last between 24 to 48 hours without losing it (IP Addresses, language, time, recording, etc.) We already change the battery and update the firmware according to the model and the fault persists ... I would appreciate your help ... thanks in advance