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FreeBSD wifi setup
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# check the hardware

pciconf -lv

# make sure your network card is recognized

sysctl net.wlan.devices

# if it is not recognized you may need to install/load the appropriate driver


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/etc/rc.conf
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wlans_imw0="wlan0"
ifconfig_wlan0="WPA SYNCDHCP"


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/etc/wpa_supplicant.conf
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network={
  ssid="<the_network_ssid>"
  psk="<the_network_password>"
}


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service netif restart   OR   reboot

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:0)
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