The camera UID might be mistyped (note that 0 and O are not used; UIDs are alphanumeric uppercase). Also, ensure the camera is powered on and has internet access. Reset the camera if needed.
: Support for cloud storage and local recording to your PC's hard drive or the camera's TF card. How to Download & Install Eye4 on Windows (11, 10, 8, 7) download eye4 for pc windows 11 10 8 7 mac updated