How to connect wifi in Mac OS

OS X 10.5 Leopard / 10.6 Snow Leopard:

1. Make sure you do not have an ethernet cable plugged in at the same time.

2. In the right of your menubar, make sure AirPort is turned on.

3. Select a network from the available list of networks.

OS X 10.4 Tiger:

1.      From the Apple menu, select System Preferences.

2.      Click the Network Icon.

3.      In the Show: field, make sure that Airport is selected

4.      In the By default, join: field, select Preferred Networks.

·         Click the plus (+) sign to add a network. You will then see this window:

Type the SSID in the Network Name: field and click OK.

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Turning Off / On Your Wireless Connection

1.      You may want to turn off your wireless connection temporarily when you're using your wired connection, in order to install certain software, or in case your computer becomes infected with a virus. To temporarily disable your wireless connection:

2.      Click on the signal strength indicator in the upper right corner of your screen and select Turn Airport Off from the menu.

3.      To turn wireless back on, click on the signal strength indicator in the upper right corner of your screen and select Turn Airport On from the menu.

4.      Click Apply Now.

5.      The airport signal on the top right corner of your window should now show connectivity and you should be able to use a web browser, e-mail or any other application that requires a network connection.

6.      Go to Macintosh HD > Applications > Utilities > AirPort Setup Assistant and open up the Setup Assistant.

7.      Make sure "Set up your computer to join an existing AirPort Network" is selected and click Continue.

8.      The next screen should say that it is ready to configure your computer to access the network Wellesley, or nostrings. If it does, click Continue.

If it does not, and instead says "No Networks found," then do the following:

• From the Airport Setup Assistant menu, choose Quit Airport Setup Assistant.
• From the Apple menu, select System Preferences.
• Click on the Network icon.
• In the Show: field, make sure that Airport is selected.
• In the By default, join: field, select A Specific Network.
• Type Wellesley, or nostrings in the Network: field.
• Click Apply Now.
• Close the Network window and proceed to step 5.

9.      When the next screen appears click Done.

10.  You should now be able to use a web browser, e-mail or any other application that requires a network connection