Not able to connect to WiFi on Dell 1545

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http://crunchbanglinux.org – I finally made the jump and installed #! as a main OS, but I'm unable to connect to my wireless network. It finished installing, and when it went to desktop, I was happy to see that it had appropriate drivers for my WLAN card. However, when I tried to connect, it just doesn't work. It asks for the passcode, but when I type it in, it verifies for around 30 seconds, then pops back up with the password prompt. After three times, it just says that the network was disconnected from. Any help?WiFi card: Dell 1397 Mini card (HowTos)