Rt-ac88u setup help

Hey guys,

I am getting RT-AC88U soon, and I am currently have Verizon Fios with TV service. The Actiontec MI424WR REV I is down in the basement where the ONT connection is, and the connection is coaxial to the router.

I need some advice with steps on how to connect the second Asus RT-AC88U to the Actiontec router. I have read some recommending using bridging feature and I am not sure doing so as far as settings between the two routers as well as configuration.

Thanks,

Ken