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Most routers have one WAN port, but you'll need as many LAN ports as you have wired devices. If you have more wired devices than can fit on a router, you can plug them all in using a wired switch. A switch is like a power strip for your router: it lets you plug in more devices than the router originally allowed.our router is the glue that holds your home network together. It connects all your computers to one another, either through Ethernet cables or a wireless connection. A router is different than a modem: your modem connects you to the internet, while your router connects your computers to one another.
Thomas Northcut/Photodisc/Getty Images. Running two routers off of one cable Internet connection allows you to do many things, including increase the number of computers at your business that you can connect to the Internet or set up more than one wireless network if you have two wireless routers.onnect one side of an Ethernet cable to the Ethernet port on the modem. Connect the other side of the Ethernet cable to the WAN or modem port on the first router. Step 4. Reset the router by pressing and holding the reset button with a paper clip for thirty seconds.