How to connect ASUS RT-N66U to coax (Spectrum) internet?

[prlfamily4]

Currently have Arris Surfboard SBG6782-AC, but does not work well with NordVPN. Asus is supposed to work better with Nord. How can I connect the Asus to my coax internet?

 

[Hawkeye22]

An Asus what, router, modem, combined modem/router? It sounds like your current setup is a seperate modem and router. If this is the case, the coax screws into the back of the modem and the modem is connected to the router via ethernet. There is no way to screw a coax cable into a router unless you have a combination modem/router.