SOLVED -- Baffled by a port forwarding issue

[Mundan101]

I have DVR in which I have setup port forwarding.  The DVR also has a remote app that works great as well.
All the rules have been setup in WAN.

The issue that I am having is that I am able to view the camera's via the app outside the network however inside the network I am not able to do so.  The DVR is accessible via web page inside the network as well as VPN.  Under firewall advanced, reflection for port forwards, reflection 1:1, and automatic outbound NAT is checked.

The app itself does use a different port to view and that is also setup properly.

I am just baffled on why I can't view the cameras on my app inside the network.

[Mundan101]

SOLVED -- I had to set a default gateway firewall rule to the DVR, after that it allowed me to see my dvr from the app.