Hello I read the archer CR1900 was a good modem, I know it does router as well, but can I switch off the router feature on it? And connect it to an external router, because I want to buy a gaming rout

Hola, mí consulta es porque compré un extensor de rango tp link AC750 _ RE200 y no pude conectarme con mí módem marca sagemcom modelo f@st 3284u DC CVA. Por favor me dirian la solución, en el caso de