If all you have is a TV, or an Amazon Fire TV Stick then I doubt whether it can be done. Since you have excluded Ethernet, this will mean connecting by WiFi. I do not have a modem, and when I try to hook the router into the internet port directly I gain no internet access. You can go wireless without having a modem in place. If you have any form of interactive device such as a phone, a games console, a tablet, etc that you can connect to the router, then it should be possible. We are full time Rvers and have no modem. This wikiHow teaches you how to use your own router with Verizon FIOS service. This wikiHow teaches you how to add a secondary router to your home or small business network. The router will provide a wifi connection to your devices, and provide them all IP addresses. (ADSL) Always remember to use the microfilter as without it it may not work or may only work intermittently. The router will have a port labelled DSL this connects using a RJ12 connector to a microfilter and then to your phone line. Connect the modem to the first router. OP originally asks: “How can I set up a Wi-Fi router without an Ethernet port on my computer?” I haven’t seen others ask yet, but how is the computer currently connecting? How to Setup D-Link DWR-116 3G/4G LTE WI-FI Router - Cable Broadband Without Modem WiFi Router Configuration Process - How to Configure (Setup) WiFi Router … Some routers act as a high-speed modem and router. I was wondering if anyone knew how to set this particular router up without a modem? All you need is an Ethernet cable to connect, say that your laptop, with your router. Use an Ethernet cable to connect to the WAN port of a router to the WAN/Internet port of the high-speed modem. If you have FIOS internet service without TV, you can swap routers easily. ... You can get internet access automatically from the modem without any other activity. I have set up plenty of times without one via wifi. If you are keen on an ethernet cable you can source a wifi to ethernet adapter like antinode alluded too. User Application Requirement. With assuming your laptop and router are set within the same network, then just login to the router and … The WAN connection, which is where you would normally connect to a cable or DSL modem, can plug into the existing network that is in place. For the purpose of this wikiHow, we will refer to the router that’s connected to the modem as “Router 1." To set up a router, the first thing you have to do is unplug the modem you got from your ISP and then connect it to the router. However, set up is not going so well. I live in an apartment that has the wall Internet connection. In general, the process of installing a WiFi device to use with your laptop begins by connecting the router to the same computer that is attached to your broadband modem (in this example, your laptop); this allows automated configuration software to obtain the information it needs without any intermediary devices along the way.