RBR50 V2.7.2.104 Port forwarding not working

Hi 

I use to be sys admin few years ago so I have good network understanding.

I have setup multiple port forwarding to multiple devices on my network 

For some reason none of them work

All the internal devices are using fixed IP (set by the Orbi router)

I know my external IP address, when I do a Nmap scan to see if I have any open ports my network it finds 0 open ports

I cannot find any reason why the port forwarding doesn't work

Will appriciate any ideas

Thanks