I press the Zhongwei monitoring, power and camera are good, that is not seen friends
If the video file is modified to 0, still can not connect the image, it may be the problem of Internet cats, it is recommended to replace ZTE 831B. There may be restrictions on the Internet cat itself.
A driver file was deleted it, look at what recently deleted files or 360 removed, and try to restore. No, it is only unloading 360, re-installed again monitoring.
Try to re-install the software to see, it is not possible to consider contact with the peacekeeping century (Baidu look) ask customer service.