Q. When I access the ddns domain from outside, the login window or image is not displayed.

If the login window is not displayed, it is necessary to check whether it work normally from the internal network.
If it works normally from the internal network, there is a possibility that the DVR site network issue is causing the connection issues.
Please check the port forwading setting, and if you encounter difficulties, Please visit the Contact Us page on our website for remote control support.