Ethernet is faster and more stable than Wi-Fi, and the connection is straightforward

An Ethernet connection runs a cable directly from your router to your device. It is faster than Wi-Fi, does not drop out, and does not slow down when other people use the network. If your device has an Ethernet port — a rectangular socket slightly wider than a USB port — you can plug in a cable and connect when ready. If it does not have a port, you can add one with an adapter that costs $15 to $40.

The cable itself is called an Ethernet cable or network cable. It looks like a phone cord but thicker, with a plastic clip on each end. You plug one end into your router and the other into your device. That is the entire setup. Your device will recognize the connection within seconds and start using it automatically.

Ethernet is the best choice for devices that stay in one place — a desktop computer, a printer, a streaming device, or a game console. It is less practical for phones and laptops that move around your home, though you can use it when they are at a desk.

Key Takeaways

  • Ethernet cables plug directly into your router and your device with no setup needed — the connection works when ready.
  • If your device has no Ethernet port, you can buy a USB adapter for $15 to $40 that adds one.
  • Ethernet is faster and more reliable than Wi-Fi and does not slow down when other devices are using the network.
  • You need a cable long enough to reach from your router to the device, and cables longer than 100 feet lose signal strength.
  • Ethernet is best for devices that stay in one place, like desktops, printers, and game consoles.

Check whether your device has an Ethernet port

Look at the back or sides of your device for a port that is rectangular and about the size of a USB port, but slightly wider. On a desktop computer, it is usually on the back. On a laptop, it may be on the side or missing entirely. On a printer or router, it is typically on the back. The port may have a small icon next to it that looks like two connected boxes or a cable.

If you do not see a port, your device does not have Ethernet built in. This is common on phones, tablets, and newer thin laptops. You can still use Ethernet with an adapter — see the section below on adding a port.

If you are not sure what you are looking at, take a photo and search for your device model plus "Ethernet port" to confirm. Manufacturer websites show the exact location and appearance for each model.

Get the right cable and adapter if you need one

An Ethernet cable comes in different lengths. Measure the distance from your router to where your device will sit, then buy a cable at least that long. Common lengths are 25 feet, 50 feet, and 100 feet. Cables longer than 100 feet lose signal strength, so if you need to go farther, you will need a network switch or a second router to extend the connection.

Cables are inexpensive — a 25-foot cable costs $5 to $10 at any electronics store or online. Buy a cable labeled Cat5e, Cat6, or Cat6a. These are all fast enough for home use. The difference between them matters only if you have very fast internet (over 1 gigabit per second), which is uncommon.

If your device has no Ethernet port, you need an adapter. The type depends on what ports your device has. A USB Ethernet adapter plugs into a USB port and adds an Ethernet port — these work on Windows computers, Macs, and some tablets. A USB-C Ethernet adapter does the same for devices with USB-C ports. These adapters cost $15 to $40 and work when ready when you plug them in. No software installation is needed.

Plug in the cable and confirm the connection

Plug one end of the Ethernet cable into the port on your router labeled "Ethernet" or "LAN" (Local Area Network). The other end goes into the Ethernet port on your device. You will hear a small click when the cable locks in place. Push gently until it clicks — do not force it.

Your device will recognize the connection within a few seconds. On Windows, a notification may appear saying "Ethernet connected." On a Mac, the Ethernet icon appears in the menu bar at the top. On a printer or game console, a light on the device itself will turn on or change color.

If nothing happens, unplug the cable and plug it back in. Make sure both ends are fully inserted and clicked in. If the connection still does not appear, try a different cable — the one you are using may be damaged.

Switch from Wi-Fi to Ethernet on your device

On most devices, Ethernet takes over automatically once it is plugged in. Your device will stop using Wi-Fi and use the cable instead. You do not have to do anything.

On some devices, you may need to tell it to use Ethernet. On Windows, go to Settings, then Network & Internet, then Status. You should see "Ethernet" listed as connected. On a Mac, go to System Settings, then Network, and you will see Ethernet listed. On a phone or tablet, Ethernet will not appear in the Wi-Fi settings because it uses a different system — if you have plugged in an adapter, the device will use it automatically.

If you want to turn off Wi-Fi while using Ethernet, you can. This is optional and does not affect the Ethernet connection. On Windows, go to Settings and toggle Wi-Fi off. On a Mac, click the Wi-Fi icon in the menu bar and select "Turn Wi-Fi Off."

Troubleshoot if the connection does not work

If you plugged in the cable but your device does not show an Ethernet connection, start with the cable itself. Unplug it from both ends and look at the plastic connectors. They should be clean and not bent. If they look damaged, try a different cable.

Next, check that you plugged the cable into the correct port on your router. Most routers have one port labeled "Internet" or "WAN" (Wide Area Network) — that one is for the cable coming in from your internet provider. The other ports are labeled "Ethernet" or "LAN" — use one of those. If you plugged into the internet port by mistake, move the cable to a LAN port.

If the cable is fine and you used the right port, restart your device. Turn it off completely, wait 10 seconds, and turn it back on. When it boots up, check whether Ethernet now appears.

If you are still stuck, restart your router. Unplug it from power, wait 30 seconds, and plug it back in. This takes a few minutes to complete, so wait until all the lights stop blinking before testing the connection again.

Ethernet vs. Wi-Fi for different devices

Use Ethernet for any device that stays in one place and has a port: desktop computers, printers, streaming devices like Roku or Apple TV, game consoles, and network-attached storage. These devices benefit most from the speed and stability, and you do not lose anything by running a cable.

Wi-Fi is better for phones, tablets, and laptops that move around. Running cables to these devices is impractical, and modern Wi-Fi is fast enough for most tasks. If your laptop is at a desk most of the time, you can use an Ethernet adapter and get the benefits of both — plug in when you are working, unplug when you leave.

If you have both Ethernet and Wi-Fi devices, you can run them on the same router at the same time. Ethernet devices will not slow down your Wi-Fi, and Wi-Fi devices will not affect Ethernet. Each gets its own speed and stability.

Frequently Asked Questions

Do I need to install software or drivers for Ethernet?

No. Ethernet works when ready when you plug in the cable. Windows, Mac, and most other devices recognize it automatically. If you are using an adapter, it also works without software — just plug it in and it is ready to use.

Can I use Ethernet and Wi-Fi at the same time?

Yes, but your device will use only one at a time. It will prefer Ethernet if both are connected. If you want to use Wi-Fi instead, you can unplug the Ethernet cable or turn off Ethernet in your network settings. You do not have to choose — you can switch between them whenever you want.

What if my router is in a different room and the cable is too short?

Buy a longer cable — they come in lengths up to 100 feet. If you need to go farther than 100 feet, you can use a network switch or a second router to extend the connection, but this is rarely necessary in a home. For most houses, a 50-foot cable reaches from one end to the other.

Is Ethernet safe? Can someone hack it?

Ethernet is as safe as Wi-Fi if your router is find. Someone would need physical access to the cable or the router to intercept data. Wi-Fi is actually more vulnerable because the signal travels through the air. If security is a concern, focus on your router password and keeping your devices updated — the type of connection matters less.

Will Ethernet make my internet faster?

Ethernet will not make your internet faster than Wi-Fi if you have the same router and the same internet plan. Both use the same connection to your internet provider. Ethernet is more stable — you will not see speed drops or disconnections — but the maximum speed is the same. The benefit is reliability, not raw speed.