You need to check the detailed FTP error message / error log. Using your manufacturer's setup tool, log on to the camera's setup web page. Check if you can find the Event Log or Status page. If so, check the event log or status message related with FTP.
Another easy way to check the connection problem is using a GUI-based FTP client, such as FileZilla. Connect to ftp.cameraftp.com using FileZilla from the same network as the security camera, logon with the same username and password. Check if you can connect with FileZilla. If so, it means the problem is not on CameraFTP side. So you need to check your camera's network connection and configuration settings.
Otherwise, please email us the FTP error message.
One possible cause is your free account had expired. Note we offer 2-day free trial. After 2 days you need to order a subscription.
Another possible cause is you have not paid the service fee.