Not that it matters, but my issue was with the Android app. Tried the app on 2 different Android cell phones during the notification outage from 12/13 to 12/16.
I received no motion alarm push notifications for those 3 days. And if you look at comments on the Play Store, neither did users who downloaded the app during that time frame.
As I mentioned, nothing I did on my end made a difference because I didn't get around to rebooting all 10 cameras and/or my cable modem & router yet and BOOM mysteriously push notifications have returned.
So it was definitely on your end DLINK....how can your tech folks not know about things like this when forums and play store comments are all saying same thing, you at least could post the standard. "We are currently working on fixing this issue" type statement. Way to lose potential customers right b4 the holidays.