said by arandomguy :I've already followed that link and it did not work :/ after step 10 it failed.
That configuration is LAN to LAN. Two things could go wrong in setting up Asus as secondary:
1. You could be setting Asus WAN then connecting Asus LAN to Actiontec LAN, or
2. Your Asus LAN is set to different subnet than Actiontec uses.
Double-check your settings and make sure it's LAN to LAN.
However some Asus features may require the use of the Asus WAN. In that case connect Asus WAN to Actiontec LAN and make sure the Actiontec uses a different subnet than the Asus, i.e., Actiontec 192.168.1.1 and Asus 192.168.2.1, where both routers are delivering LAN addresses with DHCP turned on.
One way to run cat5 if you don't have the tool to crimp an end, is to purchase a manufactured cable already terminated and run it from ONT to where you want to place the centrally-located Asus. Since you have internet-only from Verizon, you can request the ONT be provisioned via ethernet. Then the Asus will be primary.
But I think you'll do well enough with that Asus WAN to Actiontec LAN configuration.