How to Create a New Wired Network Connection on Your Computer

What you need before you start

A wired network connection requires three things: an Ethernet cable plugged into your computer, that same cable connected to a router or wall jack on the other end, and your operating system recognizing the connection. Most computers detect a wired connection automatically the moment the cable is plugged in — you do not need to "create" anything in the traditional sense. What you are actually doing is telling your computer how to use that connection, or fixing it if something went wrong during that automatic detection.

The process differs between Windows, Mac, and Linux, and even within Windows it depends on whether you are setting up a brand-new connection or troubleshooting one that exists but is not working. This guide covers the most common scenario: you have plugged in an Ethernet cable and your computer is not connecting, or you need to configure specific settings like a static IP address instead of letting the network assign one automatically.

Key Takeaways

Most computers automatically detect an Ethernet cable and connect without any action on your part — if this happened, you are already done.
On Windows, open Settings > Network & Internet > Ethernet to see your connection status and change settings like IP address or DNS.
On Mac, go to System Settings > Network and select Ethernet from the left sidebar to view or modify connection details.
If your computer does not recognize the cable at all, the problem is usually a bad cable, a disabled network adapter, or a port that needs a driver update.
A static IP address (one you set manually) is only necessary if your network requires it — most home and office networks assign one automatically.

Windows: checking and configuring your Ethernet connection

On Windows 10 or 11, plug in your Ethernet cable and wait 10 seconds. Then open Settings by pressing the Windows key and typing "settings", or by right-clicking the Start button. Click Network & Internet, then look at the left sidebar. You should see Ethernet listed there. Click it.

If Ethernet appears and shows a status of "Connected", your computer is already using the wired connection. You can stop here unless you need to change specific settings. If it shows "Not connected" or does not appear at all, scroll down on this same page to Advanced network settings, then click Network adapters. Look for an entry that says "Ethernet" — if it exists but shows a red X or a down arrow, right-click it and select Enable. Wait 10 seconds and check Settings again.

To set a static IP address instead of automatic assignment, go back to Settings > Network & Internet > Ethernet, scroll down, and click Edit next to "IP assignment". Change the dropdown from Automatic (DHCP) to Manual, then enter the IP address, subnet mask, and gateway your network administrator gave you. If you do not have these numbers, leave it on Automatic — that is the correct choice for most situations.

Mac: checking and configuring your Ethernet connection

On Mac, plug in the Ethernet cable and open System Settings (or System Preferences on older versions). Click Network in the sidebar. You should see Ethernet listed on the left. Click it to view your connection status.

If Ethernet shows a green dot and says "Connected", you are done. If it shows "Not Connected" or does not appear, click the plus sign at the bottom of the network list, select Interface: Ethernet from the dropdown, give it a name if prompted, and click Create. Then click explore. Wait 10 seconds and check again.

To change from automatic IP assignment to a static address, click Advanced at the bottom right of the Ethernet settings. Go to the TCP/IP tab. Change the dropdown from Using DHCP to Manually, then enter the IP address, subnet mask, router address, and DNS servers your network requires. Most home networks do not need this — stick with DHCP unless someone told you otherwise.

What to do if your computer does not recognize the cable

If you have plugged in the cable and it does not appear in your network settings at all, start with the simplest checks. Unplug the cable from both ends, wait 5 seconds, and plug it back in firmly. Look at the port on your computer — if there is a small light next to it, it should be lit or blinking. If it is dark, the port may not be working.

Try a different Ethernet cable if you have one available. Many cables fail silently, and a bad cable is far more common than a broken port. If a different cable works, you have found your problem. If not, the issue is likely your network adapter driver or the port itself. On Windows, open Device Manager by pressing the Windows key and typing "device manager". Look for Network adapters and expand it. If you see a yellow exclamation mark next to any entry, right-click it and select Update driver. On Mac, this is rarely the issue, but you can restart your computer and try again.

Understanding automatic versus manual IP assignment

When you connect to a network, your computer needs an IP address — a unique number that identifies it on that network. Most networks have a DHCP server that assigns these addresses automatically. This is called DHCP or "automatic" assignment, and it is the default on every computer. You do not need to do anything; it just happens.

A static IP address is one you set manually and does not change. Some networks require this — for example, if you are running a server, or if your network administrator told you to use a specific address. If you are setting up a computer at home or in a typical office, automatic assignment is correct. Only switch to manual if someone gave you specific numbers to enter, or if your network documentation says to do so.

Troubleshooting a connection that keeps dropping

If your Ethernet connection works but disconnects randomly, the problem is usually a loose cable, a failing cable, or a network adapter that needs a driver update. Start by unplugging the cable at both ends, inspecting it for damage, and plugging it back in firmly. Push until you hear or feel a click.

If that does not work, try a different cable. If the new cable solves the problem, the old one is faulty. If the problem continues, update your network adapter driver. On Windows, open Device Manager, find your network adapter under Network adapters, right-click it, and select Update driver. Choose Search automatically for updated driver software. On Mac, restart your computer and check for system updates in System Settings > General > Software Update. If none of these steps work, the network adapter itself may be failing, and you may need to contact your computer manufacturer or a technician.

When to use a wired connection instead of Wi-Fi

You arrived at this article from a guide about wired networks, so you already know the main reasons: wired connections are faster, more stable, and do not drop when you move around. They are worth setting up if you do video calls, upload large files, play online games, or work from a desk in one location. If you move around your home or office frequently, Wi-Fi is more practical even if it is slightly slower.

One wired connection does not prevent you from using Wi-Fi on the same computer — most devices can connect to both at the same time. Your computer will usually prefer the wired connection automatically. If you want to switch between them, go to your network settings and disable one or the other temporarily.

Frequently Asked Questions

Do I need to install drivers for an Ethernet connection?

Most computers come with Ethernet drivers already installed, and the connection works the moment you plug in the cable. If your computer does not recognize the cable after 30 seconds, a driver update may help, but this is rare. Try a different cable first — that solves the problem in most cases.

What is the difference between DHCP and a static IP address?

DHCP automatically assigns your computer an IP address that may change over time. A static IP address is one you set manually and stays the same. Most home and office networks use DHCP. Only use a static address if your network administrator told you to, or if you are running a server that needs a permanent address.

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

Yes. Your computer can connect to both simultaneously, and it will usually prefer the wired connection. If you want to use only one, go to your network settings and disable the other. Some networks require you to choose one or the other, but most allow both.

Why does my Ethernet connection show as "unidentified network"?

This usually means your computer is connected to the cable but cannot reach the internet or a DHCP server. Check that the cable is plugged into a working port on your router or network device. If it is, restart your router by unplugging it for 10 seconds and plugging it back in. If the problem continues, contact your network administrator or internet provider.

Is Ethernet faster than Wi-Fi?

Wired Ethernet is typically faster and more stable than Wi-Fi, especially over longer distances or through walls. The exact speed depends on your cable type and router, but Ethernet rarely has the interference or range limitations that Wi-Fi does. For tasks like video calls or large file uploads, wired is noticeably better.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.