What Asus router model do you have.
If its got a WAN port do the following.
Hub in router mode connect your PC to the Asus router and Asus router by its WAN port to the bottom port on the hub. Go to 192.168.100.1 and change to modem mode and wait for internet.
If no internet in 5 mins power off the hub for 2mins and on wait 5mins.
If no internet in 5 mins power off the hub for 2mins and connect your PC to the hub and power on till you get internet by unplug replug the Ethernet cable. Should you get internet like that connect your PC to the Asus and connect to the GUI of the router and use the clone option in WAN setting to copy your PC MAC to your Asus and connect the Asus WAN port to the hub and you should have internet.