Why does the Xiaomi Smart Camera C300 Dual frequently disconnect to the Mi Home/Xiaomi Home APP?

If the Xiaomi Smart Camera C300 Dual frequently disconnects to the Mi Home/Xiaomi Home APP, please refer to the following details:
1. Please check whether the camera is powered off, and make sure that the original adapter and data cable are used (please do not use an extension cable);
2. Please try to restart the router;
3. If the device is powered and the network is normal, please check the device indicator. If the indicators keeps in blue, the camera is connected successfully or working properly. If the indicator blinks in blue, the network has error. If the indicator blinks in orange quickly, please wait for connection. If the indicator blinks in orange quickly, please wait for updating;
4. Confirm whether the camera has a MicroSD card inserted. Remove the MicroSD card and observe whether it will still go offline. MicroSD cards with poor quality will cause the camera to go offline.