Uncheck Automatically use my Windows logon name and password (and domain if any).
Click the OK button on all open “Wireless Network Properties” windows.
Click the Connect to… link.
In the “Connect to a network” window, select uchicago-secure and then click the Connect button.
Click Enter/select additional log on information.
Enter your CNetID and password. Leave the Logon domain field blank. Click the OK button.
You may be prompted to re-enter your CNetID and password. When you have successfully connected to the network, you’ll see a “Successfully connected to uchicago-secure” message. Click the Close button.
Now that you have a working, uchicago-secure connection, you’ll need to modify a couple to settings so that you can automatically connect to this network. In the Network and Sharing Center, click Manage Wireless Networks under Tasks.
Right-click on uchicago-secure and then left-click on Properties.
Check the Connect automatically when this network is in range and Connect to a more preferred network if available checkboxes.
Click the Security tab.
Check the Cache user information for subsequent connections to this network checkbox and then click the OK button.