The Three Ways to Connect Your Computer

You can connect your computer to the internet in three ways: Wi-Fi (wireless, through the air), Ethernet cable (wired, plugged directly into your router), or mobile hotspot (using your phone's data connection). Wi-Fi is the most common for home use because it works from anywhere in your house. Ethernet is faster and more stable but requires a cable run to your computer. A mobile hotspot works anywhere but uses your phone's data plan and is usually slower.

Before you can use any of these, you need an internet service provider (ISP) — a company like Comcast, Verizon, AT&T, or a local provider — and a modem and router. The modem connects to your ISP's network. The router broadcasts Wi-Fi and lets multiple devices connect at once. Many ISPs provide both in one box called a gateway.

Key Takeaways

  • Wi-Fi is the easiest method for most home users and works from anywhere in your house without cables.
  • Ethernet cables provide faster, more stable connections and are worth using if your computer is near your router.
  • Your modem and router must be powered on and set up before your computer can connect to the internet.
  • You will need your Wi-Fi network name (SSID) and password to connect wirelessly, which you can find on a sticker on your router or in your ISP's paperwork.
  • If your computer cannot find your network, restart your router by unplugging it for 30 seconds, then plug it back in.

Connecting to Wi-Fi on Windows

On a Windows computer, click the Wi-Fi icon in the bottom right corner of your screen (it looks like curved lines). A list of available networks will appear. Find your network name — it is usually printed on a sticker on the bottom or back of your router, or in the paperwork your ISP sent you. Click on it.

A box will ask for your Wi-Fi password. Type it exactly as it appears on the sticker or paperwork — passwords are case-sensitive, meaning capital and lowercase letters are different. Click "Next" or "Connect". Your computer will take 10 to 30 seconds to connect. Once connected, the Wi-Fi icon will show a filled-in signal indicator instead of an empty one.

If you do not see your network name in the list, make sure your router is powered on (look for a light on the front). If it is on but you still cannot see the network, restart the router by unplugging it for 30 seconds, then plugging it back in. Wait two minutes for it to fully restart, then try again.

Connecting to Wi-Fi on Mac

On a Mac, click the Wi-Fi icon in the top right corner of your screen (it looks like curved lines). A dropdown menu will show available networks. Find your network name and click on it.

A box will ask for your password. Type it exactly as it appears on your router or in your ISP's paperwork, paying attention to uppercase and lowercase letters. Click "Join". Your Mac will connect within 10 to 30 seconds. The Wi-Fi icon will show a filled signal indicator once you are connected.

Using an Ethernet Cable Instead

If your computer is close to your router, an Ethernet cable provides a faster and more reliable connection than Wi-Fi. Ethernet cables look like thick telephone cords with plastic connectors on each end. One end plugs into a port on the back of your router (labeled "Ethernet" or "LAN"), and the other end plugs into a port on the back of your computer.

Most computers recognize an Ethernet connection automatically — no password needed. Your computer should connect within a few seconds. You will see a wired connection icon appear in your network settings. If your computer does not connect, make sure both ends of the cable are fully inserted into their ports. If the cable is damaged or bent, try a different cable.

Using Your Phone as a Mobile Hotspot

If you do not have a home internet connection yet, you can temporarily use your phone's data plan to connect your computer. On your phone, go to Settings, then look for "Hotspot", "Personal Hotspot", or "Mobile Hotspot" (the exact name depends on whether you have an iPhone or Android phone). Turn it on.

Your phone will display a network name and password. On your computer, find that network name in your Wi-Fi list and connect using the password your phone shows. Your computer will use your phone's data, so be aware that large downloads or streaming video will count against your phone's monthly data limit. This method works in a pinch but is not ideal for everyday use.

What to Do If Your Connection Is Not Working

If your computer connects to the network but cannot reach the internet, the problem is usually with your modem or ISP connection, not your computer. First, restart your router by unplugging it for 30 seconds and plugging it back in. Wait two minutes for it to fully restart.

If that does not work, restart your modem the same way — unplug it, wait 30 seconds, and plug it back in. Wait another two minutes. If you have a gateway (modem and router in one box), restart that device instead. If the problem continues after both restarts, contact your ISP's customer service. They can check whether there is an outage in your area or a problem with your account.

If your computer is connected to Wi-Fi but very slow, try moving closer to the router. Walls, metal, and distance weaken Wi-Fi signals. If you are far from the router, an Ethernet cable will be much faster. You can also restart your router to clear its memory, which sometimes improves speed.

Understanding Your Network Settings

Once you are connected, your computer automatically receives an IP address — a unique number that identifies it on the network. You do not need to set this yourself; it happens in the background. Your computer also receives DNS settings, which tell it how to find websites by their names (like google.com instead of a number).

If you ever need to see your connection details, you can find them in your network settings. On Windows, right-click the Wi-Fi icon and select "Open Network and Internet settings". On Mac, click the Wi-Fi icon and select "Open Network Preferences". You will see your network name, connection type, and signal strength. You do not need to change anything here unless your ISP or a technician tells you to.

Frequently Asked Questions

Why does my computer show my network but say "no internet" even though I am connected?

Your computer is connected to the router but the router is not connected to your ISP. Restart your modem by unplugging it for 30 seconds, then plugging it back in. Wait two minutes. If the problem continues, contact your ISP — there may be an outage or a problem with your account.

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

Yes, but your computer will use only one at a time. It usually picks Ethernet automatically because it is faster. If you want to use Wi-Fi instead, disconnect the Ethernet cable or disable the Ethernet connection in your network settings.

What if I forgot my Wi-Fi password?

Look for a sticker on the bottom or back of your router — the password is usually printed there. If the sticker is missing or unreadable, you can reset your router to factory settings by holding down a small reset button on the back for 10 seconds. This erases all your settings, so you will need to set up the network again from scratch. Your ISP can also help you reset the password.

Is it safe to use public Wi-Fi to connect my computer to the internet?

Public Wi-Fi at coffee shops or libraries works the same way as home Wi-Fi, but it is less find because other people on the network can see your activity. Avoid logging into bank accounts, email, or shopping sites on public Wi-Fi. If you must, use a VPN (virtual private network) app to encrypt your connection first.

Why is my Wi-Fi so slow even though I am close to the router?

Slow Wi-Fi usually means too many devices are connected at once, or something is interfering with the signal. Restart your router. If you have many devices connected, try disconnecting some. If the problem continues, move your router away from microwaves, cordless phones, and metal objects, which can interfere with the signal. An Ethernet cable will always be faster than Wi-Fi.