The three ways to connect your computer
You can connect your computer to the internet through three main methods: Ethernet cable (the fastest and most stable), Wi-Fi (wireless, works from anywhere in range), or mobile hotspot (using your phone's data plan as a backup). Most homes use Wi-Fi for convenience, but Ethernet is better if you need speed or stability for gaming, video calls, or large file transfers.
Your internet service provider (ISP) gives you a modem — the device that receives the internet signal from outside your home. If you have Wi-Fi, you also have a router (sometimes built into the modem), which broadcasts that signal wirelessly. If you're using Ethernet, you plug a cable directly from the modem or router into your computer's Ethernet port.
Before you start, make sure your ISP has activated your service and your modem is powered on and showing lights (usually a solid or blinking light means it's working). If you're setting up for the first time, this can take 24 to 48 hours after installation.
Key Takeaways
- Ethernet cables plugged directly into your computer's port offer the fastest and most stable connection, while Wi-Fi is more convenient but slightly slower.
- Your modem receives the internet signal from your ISP, and your router (if you have one) broadcasts Wi-Fi; both must be powered on and showing activity lights.
- To connect via Wi-Fi, find your network name (SSID) and password on your router's label or in your ISP's welcome materials, then select it from your computer's network list.
- If your computer doesn't recognize your network or won't connect, restart your modem and router by unplugging them for 30 seconds, then plug them back in.
- If you have no internet at all, check that your modem is powered on, the cables are plugged in firmly, and your ISP account is active before calling for support.
Connecting via Ethernet cable (wired)
Ethernet is the simplest and fastest method if your computer is near your modem or router. Look for the Ethernet port on your computer — it's a rectangular jack about the size of a phone jack, usually on the back or side. The cable itself is a thin cord with a plastic connector on each end.
Plug one end of the Ethernet cable into your computer's Ethernet port and the other end into an available port on your modem or router (the ports are usually labeled with numbers like 1, 2, 3, 4, or sometimes "LAN"). You should see a light on the port turn on or blink. Your computer should recognize the connection within a few seconds — you'll see a wired network icon in your system tray (bottom right on Windows, top right on Mac).
If the connection doesn't appear, try a different port on the router, or restart your modem by unplugging it for 30 seconds and plugging it back in. If you still have no connection after five minutes, the cable may be damaged — try a different Ethernet cable if you have one available.
Connecting via Wi-Fi (wireless)
Wi-Fi is the most common way to connect because you don't need cables and can move around your home. To connect, you need your network name (called the SSID) and password. These are usually printed on a label on the bottom or back of your router, or in the welcome packet your ISP sent you.
On your computer, open your network settings. On Windows, click the network icon in the bottom right corner of your screen and look for a list of available networks. On Mac, click the Wi-Fi icon in the top right corner. Find your network name in the list, click it, and enter the password when prompted. The password is case-sensitive, so type it exactly as it appears on your router's label.
Your computer will connect within 10 to 30 seconds. You'll see a checkmark or "connected" label next to your network name. If the password doesn't work, double-check that you're typing it correctly — common mistakes are confusing the letter O with the number 0, or the letter l with the number 1. If you still can't connect, restart your router by unplugging it for 30 seconds.
What to do if your modem or router isn't working
Before you call your ISP, check the basics. Make sure the modem is plugged in and powered on — you should see at least one light on the front (usually labeled "Power"). Check that the cable from the wall outlet is firmly plugged into the modem's port labeled "Internet" or "WAN" (wide area network). If you have a separate router, make sure it's also plugged in and powered on.
Wait for the modem to fully start up — this usually takes two to three minutes. You'll see lights stop blinking and settle into a steady pattern. If the lights are all off or red, unplug the modem for 30 seconds, then plug it back in and wait again.
If you still have no internet after 10 minutes, check your ISP's website or call their support line to confirm your account is active and there are no outages in your area. Have your account number and the modem's serial number (printed on the modem itself) ready when you call.
Changing your Wi-Fi password or network name
You can change your Wi-Fi password and network name through your router's settings page. Open a web browser and type 192.168.1.1 or 192.168.0.1 into the address bar (the exact address is usually on your router's label). You'll be asked to log in — the default username is often "admin" and the password is either "admin" or "password", but check your router's label for the correct credentials.
Once logged in, look for a section labeled "Wi-Fi", "Wireless", or "Network Settings". You can change the network name (SSID) to anything you want and set a new password. Make sure your password is at least 12 characters long and includes letters, numbers, and symbols for security. After you save the changes, your router will restart and you'll need to reconnect all your devices using the new password.
If you forget your Wi-Fi password, you can reset your router to factory settings by holding down the small reset button on the back for 10 to 15 seconds. This will erase all your custom settings and return the network name and password to the defaults printed on the router's label.
Using your phone as a backup connection
If your home internet is down and you need to get online, you can use your phone's mobile hotspot feature to share its data plan with your computer. On most phones, this is called "Personal Hotspot" (iPhone) or "Mobile Hotspot" (Android). Open your phone's settings, find the hotspot option, and turn it on.
Your phone will broadcast a Wi-Fi network with a name and password. On your computer, find this network in your Wi-Fi list and connect to it the same way you would connect to your home Wi-Fi. Your computer will now use your phone's cellular data to access the internet.
Be aware that this uses your phone's data plan, so if you have a limited monthly allowance, streaming video or downloading large files will use it up quickly. This method is best for checking email, browsing, or video calls for a few hours while you wait for your home internet to be repaired.
Frequently Asked Questions
Why is my Wi-Fi slower than my Ethernet connection?
Wi-Fi travels through the air and can be slowed by walls, distance from the router, and interference from other devices like microwaves or cordless phones. Ethernet is a direct cable connection with no obstacles, so it's always faster. If you need speed for gaming or large downloads, use Ethernet. If Wi-Fi is too slow, move your router to a central location in your home or switch to Ethernet if possible.
Can I use both Ethernet and Wi-Fi at the same time?
Yes, but your computer will use only one at a time. Windows and Mac automatically prefer Ethernet when both are connected, so if you plug in an Ethernet cable while Wi-Fi is on, your computer will switch to the wired connection. You can manually choose which one to use in your network settings if needed.
What if my computer doesn't have an Ethernet port?
Many newer laptops, especially thin models, don't have built-in Ethernet ports. You can buy a USB-to-Ethernet adapter (around $15 to $30) that plugs into a USB port on your computer and gives you an Ethernet jack. Make sure the adapter is compatible with your computer's operating system before you buy it.
How do I know if my modem is working properly?
A working modem usually has a solid or slowly blinking light labeled "Internet", "Online", or "WAN". If this light is off or red, the modem isn't receiving a signal from your ISP. If the light is green and steady, the modem is working. Restart it by unplugging for 30 seconds if you're having connection problems, even if the lights look normal.
Can I move my router to a different room?
Yes, but placement matters. Put your router in a central, elevated location away from walls and metal objects for the best Wi-Fi coverage. Avoid placing it inside cabinets, closets, or near microwaves and cordless phones, which can interfere with the signal. If you move it far from your modem, use a longer Ethernet cable to connect them, or use Wi-Fi to connect the router to the modem if your router supports it.