Archer AC750 remote access
I'm having troubles setting up a remote access point to my AC750 wireless dualband 4g LTE Router.
I configured a working no-ip address within http://flybox.home which properly sends the address from the sim card I'm using to create the network.
My issue is that I'm unable to configure this router to access remotely with this no-ip address. I've properly forwarded the ports ( I've tried 80:80 and 8081:80), however, it never resolves. I've even tried setting up a second IP with this router and forwarded that address instead, but to no avail.
Is there any specific configuration, gateaway or some parameter I need to configure to access this router through the no-ip?