The Book of Wireless, Second Edition

I can't find a public network.

Before your computer can connect to a public wireless network, your network adapter must associate itself with that network's access point. If the adapter doesn't automatically join the network, check these configuration settings:

• Confirm that the TCP/IP settings are configured to accept an IP address from a DHCP server.

• Run your web browser before you try to use some other Internet client program, such as a mail reader. Most commercial public networks display a login screen through the browser, and they won't make any other connection until you identify yourself to them (and start their billing clock). If your default home page is a blank screen, choose a website from your Favorites or Bookmarks list, or type a URL ...