Fedora has a neat little application, Network connections, that you can use.
For the purposes of the example below I assume you have a Linksys wireless broadband modem. Brand shouldn't matter, they all do pretty much the same thing.
On Fedora host ...
- Access System from main menu, than Network Connections.
- Select the wireless tab in Network Connections.
- Add or edit the wireless connection.
--- Wireless tab, SSID - coordinate the value with the Linksys, change from the default
--- Wireless tab, Mode - infrastructure
--- Wireless security tab - WPA & WPA Personal, coordinate with the Linksys
--- Wireless security tab - password, coordinate with the Linksys
--- IPv4 settings - DHCP, the Linksys has to have DHCP enabled
--- IPv6 settings - Ignore
Some questions, in case the easy answers above don't work
-What kind of wireless card and host are you using?
-Are you using it to connect to a broadband wireless modem (like a Linksys)? If not, what are you using?
- On the wireless device your host should connect to, what have you configured for DHCP, SSID, and security (WEP, WPA)?
-If you issue ifconfig from the command prompt, do you see WLAN0?
-If you are using a cable or DSL modem, does the wired connection give you the access you need?