connect WLAN-stick with DHCP server


I use Angstrom and try to connect the USB-WLAN stick with FritzBox. The stick is DWL-G122 RevC from D-Link (the chip is RT73) and on FritzBox a DHCP server is running. The Angstrom already is updated. Ethernet is working, but WLAN is not able to get the authentication. The BBB is powered by an external 5V/1A supply and the stick is connected by a powered USB-hub.

I know this stick is not at the wiki-list of “known working WiFi adapters”. But, do you think I can use this stick anyway and do not have to buy a new one?

My linux-know-how is limited and I hope someone can help me with more experience. This are some output information’s from BBB:

root@beaglebone:~# lsusb | grep D-Link
Bus 001 Device 003: ID 07d1:3c03 D-Link System AirPlus G DWL-G122 Wireless Adapter(rev.C1) [Ralink RT2571W]
root@beaglebone:~# lsmod | grep rt
rt73usb                18221  0
rt2x00usb               9375  1 rt73usb
rt2x00lib              34321  2 rt73usb,rt2x00usb
mac80211              270414  2 rt2x00lib,rt2x00usb
cfg80211              166418  2 mac80211,rt2x00lib
root@beaglebone:~# iwlist wlan0 scan
wlan0     Scan completed :
          Cell 01 - Address: BC:05:43:2F:A7:CE
                    Frequency:2.412 GHz (Channel 1)
                    Quality=46/70  Signal level=-64 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Extra: Last beacon: 1193ms ago
                    IE: Unknown: 00096575726F746F6F6C73
                    IE: Unknown: 010482848B96
                    IE: Unknown: 030101
                    IE: Unknown: 2A0104
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32080C1218243048606C
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD0A0800280101000200FF0F
root@beaglebone:~# iw dev wlan0 scan
BSS bc:05:43:2f:a7:ce (on wlan0)
        TSF: 48682225873 usec (0d, 13:31:22)
        freq: 2412
        beacon interval: 100
        capability: ESS Privacy ShortSlotTime (0x0411)
        signal: -60.00 dBm
        last seen: 1218 ms ago
        Information elements from Probe Response frame:
        SSID: eurotools
        Supported rates: 1.0* 2.0* 5.5* 11.0*
        DS Parameter set: channel 1
        ERP: Barker_Preamble_Mode
        RSN:     * Version: 1
                 * Group cipher: TKIP
                 * Pairwise ciphers: CCMP
                 * Authentication suites: PSK
                 * Capabilities: (0x0000)
        Extended supported rates: 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0
        WPA:     * Version: 1
                 * Group cipher: TKIP
                 * Pairwise ciphers: TKIP
                 * Authentication suites: PSK
                 * Capabilities: (0x0000)


# The loopback network interface
auto lo
iface lo inet loopback
# primary network interface
auto eth0
iface eth0 inet dhcp
# WLAN network interface
auto wlan0
iface wlan0 inet dhcp
        wpa-conf /etc/wpa_supplicant.conf


        proto=WPA RSN
        pairwise=CCMP TKIP
        group=CCMP TKIP