My Beryl AX AX3000 WiFi 6 Router Does not see ethernet cord in WAN port even though it is connected to it

I bought the router recently and for some reason after reading and following the steps provided my ethernet cord is not being found in the WAN port even though it is connected

the ethernet is connected to a main router and this works fine if connected to my pc but when connected to my AX3000 it does not detect it in its wan port
Are there any fixes to solve this issue I am having?