LTE5388-M804 Portforward Help

[Erm yeah that’s hard to pick one]

I have a LTE5388-M804 and trying to portforward a single ethernet device (well it's web page) that is connected to it. It's a 4G router so not sure if that the issue I have faced. Here is a screen shot the settings page.

User guide link, page 170 for the forwarding https://download.zyxel.com/LTE5388-M804/user_guide/LTE5388-M804_EU_1.00_2.00 Ed2.pdf

Edit, Device I want to forward is 192.168.1.168

 

[Erm yeah that’s hard to pick one]

Have you tried filling in the fields?
Which port if the web server running on? 80/443?

Do you have a proper external IP address or are you on CGNAT?

Yep it works.
Not a clue what port.
I couldn’t say. Using a Smarty sim