How to organize an Internet connection from a 4G modem to an ASUS RT-N12 C1 router?

Question

Computer networks

There is a 4G modem that is not tied to an operator. It is connected to the computer via USB. It is required to transmit a signal from it to a router for distributing a Wi-Fi signal.
I tried to follow the guides for 3G modems, nothing happened.
There is no opportunity to buy a router with USB.
Windows 7 9600, ASUS RT-N12 C1 router.

Answer 1

Share the 4G connection on the computer for all users (It is important that the routing service must be enabled).
On the router, configure the WAN interface with an IP address from the same subnet as the LAN connection on the computer, specify the computer IP as the gateway, dns 8.8.8.8
But there are two points:
1. If third-party software is used to connect to the 4G network, then most likely each new connection will have a new name in the OS.
2. And finally, NAT in NAT`e is harsh