you need connect the ethernet ports to ur router

all also can

All lan ports on the Wi-Fi Router can access to internet.

Do you mean the ethernet port on the wall? If it is, then you need to know where is the other end of those cable and connect those end to your router. For multiple cable (more than available port on router), you might need to get a proper ethernet switch, connect all cables to the switch and 1 cable from switch to router.

Hi Bro,

This is very common design where all your Ethernet cables will be linked back to a centralized location (usually will be a DB/Centralized Switch), commonly this is also where the fibre termination point will be.

Some buildings are designed in a different way where your Fibre Wall Socket/Termination Point is situated at a different location.

Best if you could let me know more details about the cable routes of your unit.
We'd able to advise you with the best solutions to utilize those Ethernet Ports.

Thanks.