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How to Connect an iPhone to a Wi-Fi Network

If you're a new iPhone owner, one of the first things you'll want to learn how to do is connect your iPhone to a wireless network. That's because there are certain times when your cellular data connection just won't cut it, even if you're lucky enough to have an unlimited data plan. Using Facetime, downloading content from iTunes, and even surfing the web can be painfully slow without a wi-fi connection.

Make Your iPhone Ask to Join Wi-Fi Networks

By default, your iPhone automatically connects to known wi-fi networks. (To stop an iPhone from automatically connecting, you can tell your iPhone to forget a wi-fi network.) But what happens if you take your iPhone to a new location? You'll need to manually connect your iPhone to a wi-fi network.

Tell Your iPhone to Forget a Wireless Network

When you connect an iPhone to a wi-fi network, the iPhone remembers that network and will automatically attempt to connect to it in the future. This is a great feature for wi-fi networks you trust and use frequently. But mistakes happen. If you connect to the wrong network at a coffee shop, your iPhone will automatically attempt to join that network every time you visit the coffee shop in the future. And if the password for a known network changes, your iPhone might have trouble connecting to it.

How to Change Your iPhone's DNS Servers

Just like in Mac OS X, you can change the DNS servers on your iPhone. This can significantly speed up Safari and other iPhone apps that use the Internet. For a general introduction to DNS, and to learn why you would want to change the DNS servers on your iPhone, see How to Change Your Mac's DNS Servers.

How to Find Your iPad's MAC Address

Your iPad's Wi-Fi interface has a permanent, unique serial number called a media access control (MAC) address. Some universities and employers may request your iPad's MAC address to monitor or limit your access to certain Wi-Fi networks.

How to Find Your iPad's IP Address

Your iPad is assigned something called an IP address when it connects to a Wi-Fi network. Other devices that are connected to the same Wi-Fi network can use this unique identifier to transfer information to and from your iPad. If this sounds confusing, it might help to think of an IP address as your iPad's home mailing address. Just like physical mail, which is routed to your home via a unique address, digital information is routed to your iPad using an IP address.

There may be certain situations when you'll need to find your iPad's IP address. Here's how to find it:

How to Find Your iPhone's MAC Address

Your iPhone's Wi-Fi interface has a permanent, unique serial number called a media access control (MAC) address. Some universities and employers may request your iPhone's MAC address to monitor or limit your access to certain Wi-Fi networks.

How to Find Your iPhone's IP Address

Your iPhone is assigned something called an IP address when it connects to a Wi-Fi network. Other devices that are connected to the same Wi-Fi network can use this unique identifier to transfer information to and from your iPhone. If this sounds confusing, it might help to think of an IP address as your iPhone's home mailing address. Just like physical mail, which is routed to your home via a unique address, digital information is routed to your iPhone using an IP address.

There may be certain situations when you'll need to find your iPhone's IP address. Here's how to find it:

How to Take a Screenshot of Your iPad

Taking a screenshot of your iPad allows you to capture whatever is on your iPad's screen. It's a great way to share your high game scores, message conversations, or setting configurations. Screenshots are saved as photos on your iPad, and if you use Photo Stream, they're automatically shared with all of your other Apple devices. An example screenshot is shown below.

Here's how to take a screenshot of your iPad:

Make Your iPad Ask to Join Wi-Fi Networks

By default, your iPad automatically connects to known wi-fi networks. (To stop an iPad from automatically connecting, you can tell your iPad to forget a wi-fi network.) But what happens if you take your iPad to a new location? You'll need to manually connect your iPad to a wi-fi network.

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