How Do I Change the Wi-Fi Password for My Camera?
Learn how to change the Wi-Fi network configuration for your camera in the AJCloud app
Find the corresponding camera in the APP, click Settings (gear button) -> Network -> select setup mode -> select the network name you changed and enter the password to configure the network.

If the camera never enters the network configuration status or fails to configure the network, please hold the Reset button until you hear a beep to indicate that the camera has been successfully reset. At this point you can try configuring the network for the camera again.
5GHz Wi-Fi is not supported if the device doesn't support dual-band Wi-Fi. Please make sure you are connecting to a 2.4GHz network.
Tài liệu AJCloud