We aren’t sure what triggers the issue; may be playing with any Cam Plus (or Lite) settings.
I just had a couple missed notifications, so I am not fixed. I DM’d Desmond my Mac Addresses and Times.
I doubt this helped, but I also power cycled my cameras earlier today. I wonder because they worked for a time, but they are back to failing again ATM. I think a power-cycle can get you a different AWS server, if one server is where this issue lies. Always worth a shot, anyway. 