If your are unable to see playback on your NVR, please follow the steps to check that:
1) Make sure you have register your device to mydlink.
2) Open a web browser and enter the web address to access the NVR Web GUI.
If you're still unable to see playback, please re-add your camera to NVR and re-log in to mydlink to see your live video.
If Yes, please check again: