6A series of different screens appears depending on the network type. Enter or select the following if you are prompted to do so:

•Username and/or Password

•Certificate

7Tap Sign In.

Connect to a previously used network

•If Wi-Fi is turned off, turn on Wi-Fi (see Turn Wi-Fi on/off). Your device automatically attempts to connect to a previously used network, starting with the most recently used network.

•If you move to a new location and Wi-Fi is turned on, your device automatically attempts to connect to a previously used network if one is discovered at the new location. If more than one previously used network is discovered, the device starts with the most recently used network.

•If you are connected to one network and want to use a different one,

open Wi-Fi and open the application menu. Tap Stored Profiles and tap another network name.

Connect to a captive portal

When connecting to some Wi-Fi access points, such as in a coffee shop, a hotel, or an airport, the notification for a captive portal sometimes appears. This means that to connect to this Wi-Fi access point, you must first go to a special Internet page, known as a captive portal, before you can connect to the Internet. A captive portal might be used by your Wi-Fi host for authentication or for payment to access the Internet.

To connect to a captive portal:

1Tap at the top of the screen and then tap the notification Captive Portal Detected on WiFi.

2If required, review the security certificate notices and tap one of the following:

Trust Certificate: Connects you to the captive portal page automatically whenever you connect to this Wi-Fi access point.

Trust Certificate Once: Connects you to the captive portal page for this session only. The next time you try to connect to this Wi-Fi access point, you will be asked to trust this certificate again.

Don’t Trust Certificate: Cancels the connection.

3Your Wi-Fi host may require you to view advertisements, pay a fee, or accept conditions of use. Follow the instructions onscreen.

Disconnect from a network

When you disconnect from a network, you can keep it on your list of known networks so that your device can automatically connect to it again. If you remove the network from your list of known networks, however, you must reconnect to the network. Follow the steps in Connect to a new open network or Connect to a new secure network to connect to the network again.

•To disconnect from a network but keep it on your list of known networks: Turn off Wi-Fi (see Turn Wi-Fi on/off). This disconnects you from the network.

•To disconnect from a network and remove it from your list of known

networks: Open Wi-Fi. Tap the network name, and then tap Forget Network.

Put Wi-Fi to sleep when the screen is off

By default, your device keeps its Wi-Fi connection active even when the screen is dark. If, however, you find that a Wi-Fi connection is constantly, unnecessarily waking up your device, you can save battery power by

Chapter 14 : Wireless connections 161