I recently flashed my ASUS AC66U with Merlin 380.70 and successfully installed Entware to run 3Proxy. Currently, I have 3 devices on my local network: the ASUS modem at 192.168.1.1, 4G modem #1 at 192.168.1.8, and 4G modem #2 at 192.168.1.9. My objective is to use the internet from either 4G...