LAN offline, Internet offline 1) Please try to restart the camera to confirm that the camera has been started correctly and connected to WiFi 2) Turn off the router AP isolation function 3) Check whether the mobile phone can be connected to the Internet normally, and the APP has obtained the network permission 2.LAN online, Internet offline 1) Please try to restart the camera and confirm that the camera is already in station mode 2) Check whether the router is connected to the Internet 3) Check whether the router restricts the device from connecting to the Internet 4) Turn off functions such as router firewall, blacklist, mac address binding, etc. 5) If the above methods fail to solve the problem, please contact the technician.