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10 second version:
1. Click the wifi icon in the top right corner of your screen.
2. Click on the network to which you want to connect.
3. Type in the network password.
4. Click Join .

Method 1
Method 1 of 4:

Connecting to a Wireless Network (Home)

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  1. A "Home" network is usually associated with a private location. When connecting to a Home network for the first time, you'll usually have to enter a password.
  2. This is the series of radiating waves in the top right corner of your screen. [1]
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  3. Unless your network is in a fairly isolated location, you'll probably see a few different network names here.
  4. This should be the network associated with the router in your house. If you didn't name your router when setting up the network, the network name will probably be the name of the router's company followed by a numerical tag.
  5. If you never set a wifi password but you're being asked to enter one, look at the bottom of your router--you should see a router network name and a random password listed there.
  6. Your Mac should now be connected to the Internet.
  7. This will ensure that your Mac connects to this network automatically. You shouldn't have to enter your password the next time your Mac connects.
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Method 2
Method 2 of 4:

Connecting to a Wireless Network (Public)

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  1. A fair amount of public locations, such as businesses and shops, have wireless networks associated with them. While many of these networks are unprotected--meaning you don't need a password to access them--they are also often insecure networks with minimal protection.
  2. This is the series of radiating waves in the top right corner of your screen.
  3. If you're in an area with wifi capability, you'll see at least one network name.
  4. If you have the option of picking a password-protected network over an unprotected one, go with the protected network--being able to connect to a secure network is worth the hassle of having to ask an official (e.g., shop staff) for the password.
    • Depending on your location, you may have to pay a fee (or purchase merchandise) before you can use a protected network.
    • If you end up choosing an unprotected wifi network, be careful about the information you view and input while using it. Other users may be able to view this information as well.
  5. Generally speaking, the network in question will have the strongest signal out of all the surrounding networks.
  6. If the network has a password, you'll need to type it in first.
  7. Only do this if you use this network often. You should now be connected.
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Method 3
Method 3 of 4:

Using an Ethernet Cable

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  1. Using an Ethernet cable to connect your Mac directly to your router will increase the stability of an otherwise-unstable Internet connection, and your browsing speed may increase. However, being tethered to your router means you have significantly less mobility with your Mac--and you probably won't be able to use an Ethernet cable in most public places.
  2. There should be a square port on the back of your router labeled "Internet" (or "LAN" in some cases).
    • The moral majority of routers have several spare ports.
  3. Ethernet cables have a plastic box on each end. If you don't have one, you can buy one online for between $5 and $25.
  4. It doesn't matter which end you use.
  5. This should be a square opening on the side of your Mac's casing. It may have a <...> symbol above it.
  6. Your settings should be configured automatically.
    • Using a local area network (LAN) doesn't require you to enter a password, though your Mac may ask you if you want to trust the source.
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Method 4
Method 4 of 4:

Troubleshooting Wifi Problems

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  1. Sometimes a simple driver in your Mac's operating system will malfunction, leading your wifi to be disabled or inconsistent. Before moving around or purchasing a new router, try restarting your computer.
  2. The closer you are to your router, the stronger the signal will be. If you're having issues with your connection's consistency, moving closer to the router may solidify it for you.
  3. Especially if your router is on a different level of your location than you are (e.g., the second floor), you may notice connection issues. The same can go for if you aren't in the same room with nothing between your computer and the router unit.
    • If your router is in a cabinet, try opening the cabinet doors.
    • Anything from basic furniture to walls and appliances can interfere with a wifi signal.
  4. If you're getting poor results on your end even after aligning yourself directly with the router, try restarting it. Each router is unique, but in most cases, you can simply turn off (or unplug) the router's power source for a few seconds to do this.
    • Your router should restart upon plugging it back in. Expect this process to take a minute or two.
  5. If all else fails, you can use your Ethernet cable to connect your Mac directly to the router. While this may be inconvenient from a location standpoint, you shouldn't have any problems with Internet connectivity while tethered to your router.
    • If you're in a public location, you probably won't be able to connect via Ethernet--though some libraries and airports may allow you to do so.
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Community Q&A

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  • Question
    I don't own a Mac. How can I find out who's accessing my Google account from a Mac?
    Liza Gaylord
    Community Answer
    You can't, but you should be able to go into your Google account and flag this activity as not coming from you; they should handle it from there.
  • Question
    How do I get or find the network password?
    Community Answer
    Each router has a default password/PIN, and you can check your router for a sticker with that information. If the password has been set to something else, and you've previously connected to this WiFi, the password should be stored on your computer. See How to Find Your WiFi Password when You Forgot It for how to find it.
  • Question
    How do I connect my Ethernet cable to my Mac Pro?
    Community Answer
    The Mac Pro has an ethernet port on the back. You should be able to take an ethernet cord and connect it from your router to the Mac Pro.
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      Warnings

      • While public networks are great for casual browsing, refrain from accessing sensitive data on them.
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