I tried everything... surely it is not difficult, considering how easy everything else was, no? No. The built-in WiFi configuration tool didn't not work for me. I found a cool WiFi tool called wicd. For more information see wifi on raspberry pi: a simple guide, at raspyfi.com (but it didn't work for my problem, either)
So the deal is: WiFi is easy to setup on RPi as long as the target AP has a ssid that is broadcasted. I prefer the security of an unbroadcasted ssid. (details, details)
Google to the rescue! I found this awesome article on settig up the RPi as a WiFi radio. On the setup page, the author describes in detail how to setup WiFi with a hidden ssid.
We all know how over the years links change or simply go away, so I've copied the critical hidden ssid setup text from that article here (credit to Philip Burgess at adafruit):
In the end, my \\raspberrypi\c$\etc\network\interfaces file looks like this:If you run a hidden WiFi network — one that does not broadcast its SSID — this can still be made to work but is considerably more complicated. The slightest typo here, even one character, can prevent the system from joining the network! We strongly recommend using a “broadcast” network, it’s far easier and less error-prone.
sudo nano /etc/network/interfaces
Delete the {last} two lines {under "iface wlan0 inet dhcp" } (wpa-ssid and wpa-psk) and replace with (indented):
pre-up wpa_supplicant -Dwext -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf -B
sudo nano /etc/wpa_supplicant/wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant update_config=1 ap_scan=2 eapol_version=1 network={ ssid="my-network-ssid" scan_ssid=1 mode=0 proto=WPA2 auth_alg=OPEN pairwise=CCMP group=CCMP key_mgmt=WPA-PSK psk="my-network-password" }Replace ssid and psk with your actual network name and password, in quotes.
Important: indent the 'network' section using tabs, not spaces.
auto lo
iface lo inet loopback
iface eth0 inet dhcp
auto wlan0
allow-hotplug wlan0
iface wlan0 inet dhcp
pre-up wpa_supplicant -Dwext -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf -B
And my \\raspberrypi\c$\etc\wpa_supplicant\wpa_supplicant.conf file looks like this (with my ssid and psk where noted):
ctrl_interface=/var/run/wpa_supplicant
update_config=1
ap_scan=2
eapol_version=1
network={
ssid="myssid"
scan_ssid=1
mode=0
proto=WPA2
auth_alg=OPEN
pairwise=CCMP
group=CCMP
key_mgmt=WPA-PSK
psk="mypsk"
}
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