Unable to open port forwarding

Product: Mikrotik Routerboard RBwAPR-2nD&R11e-LTE

Need assistance to get ports open on routerboard with LTE 4g network

Current configuration used: add action=dst-nat chain=dstnat dst-address=120.157.xx.xxx dst-port=80
in-interface=all-ethernet protocol=tcp to-addresses=192.168.88.253
to-ports=80

I’ve contacted our ISP and have confirmed current APN is correct and external IP.

I’ve been trying to work this out for ages, any assistance would be greatly appreciated.
Camera network.jpg
Interface image.png
Nat image.png

What’s with the in-interface=all-ethernet? It doesn’t look like anything you need.

To be honest, I’m not overly experienced with networking or even IT. I gave this unit to an IT company that is experienced with networks and they said I’ve got the wrong modem/router after spending a few hours trying to figure this out and then tried to upsell me to an overpriced Meraki. I’m now trying my best to just work it out myself, as I’m sure it can be done. I have followed a few tutorials and both showed in-interface, “ether1-gateway” should be selected, but I don’t have this option, the closet option I have is “ether1”, but I can’t use this as it is a slave to the bridge. My thoughts were because the camera is plugged in to the ethernet port, “all ethernet” may do the trick. Should I remove the in-interface option?

Which ip address is assigned to the MikroTiks WAN-port (lte)?
Can you please show us your full configuration (/export hide-sensitive) - as Sob mentioned the “in-interface” option is most likely blocking the wanted behavior.

Both of you were spot on, I remove this selection and it started working. I’ve spent so much time on this, so I’m very grateful for your help.