Netgear xr300 gaming router

[Dennesdejong]

I cant connect my router with my internet WAN Port it only works with my modem but not from the cable That come out of my wall directly to my XR300 router

[Netduma-Liam]

The XR300 doesn't have modem functionality, so you'll need to keep your modem in the network.

If it's a modem/router you can either put it into modem/bridge mode or you can put the XR300 IP in the DMZ and disable the modem/router's Wi-Fi.