MC7455 as Home Network WAN?

Highly doubt it, as being in this valley means I’m below the tree line, and have NLOS to the tower, even though it’s only 3.48 (As the crow flies) miles from my house.

I’m working on right now trying to figure out why I get internet on the PI and if I’m connected via Wifi, but my router isn’t taking in the signal from the ethernet port on the PI.

Is there some firewall settings that are blocking it? Shouldn’t the internet be sent just fine to the internet port on the router? (Archer C7, stock firmware, I need to flash it to DD-WRT).