It’s best to follow the directions that came with the router. But here is a typical walk-through of setting up your router, which should get you fully connected.
Make sure you have an internet connection. To check internet status, use an Ethernet cable and plug in one end to your modem or ISP gateway and plug the other end directly into your laptop or desktop PC.
Unpack and assemble your router. If your router is new, look for any stickers or directions that may include setup information (like the router's web interface address or the username and password).
Find a place to install the router. The ideal router position will be in a central location in the office or home, since routers broadcast in all directions.
Plug in your router. Once it’s plugged in and turned on, you should see the router's indicator lights activate. Some will blink or change color during the setup process (which can take a few minutes).
Connect your router to your internet source. Use a basic Ethernet cable, plugged into the router's WAN or internet port on one end and your modem or ISP gateway on the other end. Watch the router’s LED indicator as you plug in the cable. You should see its color change or a new light appear. This indicates an active internet connection.
Plug your laptop or desktop PC into one of the device ports on the back of the router. You should be able to quickly open a wired connection. (Check to see if your router has a dedicated app for setup. If so, you can skip this step and go straight to the app for setup.)
Access the router's web interface. While you have a computer connected to the new router, you can now set a new network name and password. Additionally, you'll need to log in to the web interface to adjust your settings and activate your Wi-Fi. While you're activating the Wi-Fi, you'll also want to choose an encryption protocol for your wireless network. The recommended protocol is Wi-Fi Protected Access II (WPA2) protection.
Connect all wired devices with an Ethernet cable. If you want to physically connect any device to your router (such as a game console, printer, TV or internet phone system), you'll need an Ethernet cable for each. Plug each wired device into one of the available ports on the back of the router.
Connect your devices to the W-Fi. Once your Wi-Fi network is up and running, you'll want to get your devices connected. Use your new network name and password to log onto your new Wi-Fi network.