Routers come in all shapes and sizes, so make sure you get what you need by comparing features.Most routers come packaged with a short Ethernet cable that you can use for this. Connect one end of an ethernet cable to the modem's LAN port, and the other end into your router's WAN port.For best results, place your router near your modem. If your internet provider didn't give you a router/modem combo device, you'll need to connect the router to the modem. Routers and wireless routers enable you to share your broadband internet connection with multiple devices. X Expert Source Luigi OppidoĬomputer & Tech Specialist Expert Interview.