All DumaOS devices are routers. They must be connected to a modem in order to function. Most ISPs will give you a modem which you can plug straight into your DumaOS router. Some ISPs will give you a combined router and modem. For these, you must either put the ISP router into Bridge Mode, or put the DumaOS router into the DMZ of the ISP router. Devices should all be connected to the DumaOS router, with the DumaOS router being the only device connected straight to the ISP router. Please ask on our forums if you need further assistance setting up your DumaOS router: