No Wi-Fi network on a PI 2 Model B



    • I'm using a Pi 2 (Model B) with latest Recalbox installed (18.07.13). Ethernet network is working, but not Wi-Fi

    • Wi-Fi network settings:

      • SSID visible ? Yes
      • Chanel: 3
      • WPA2-PSK/AES
    • recalbox network Interfaces without the Wi-Fi dongle

    $ ip a
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
        inet 127.0.0.1/8 scope host lo
           valid_lft forever preferred_lft forever
        inet6 ::1/128 scope host 
           valid_lft forever preferred_lft forever
    2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP8000> mtu 1500 qdisc pfifo_fast qlen 1000
        link/ether b8:27:eb:a0:d9:77 brd ff:ff:ff:ff:ff:ff
        inet 192.168.0.11/24 brd 192.168.0.255 scope global eth0
           valid_lft forever preferred_lft forever
        inet6 fe80::ba27:ebff:fea0:d977/64 scope link 
           valid_lft forever preferred_lft forever
    $ 
    
    • I configure Wi-Fi directly in recalbox.conf.
    $ grep wifi recalbox.conf
    ##Activate wifi (0,1)
    wifi.enabled=1
    ##Set wifi region
    wifi.region=FR
    wifi.ssid=le-wifi-de-morgoth
    wifi.key=enc:U2FsdGVkX1/fU30c3mVxGS0ngl1HclFBOFv9Y1qPFFU=
    #secondary wifi (not configurable via the user interface)
    ;wifi2.ssid=new ssid
    ;wifi2.key=new key
    #third wifi (not configurable via the user interface)
    ;wifi3.ssid=new ssid
    ;wifi3.key=new key
    $ 
    
    • Here's the output of dmesg after connecting Wi-Fi dongle
    [  350.254751] usb 1-1.2: new high-speed USB device number 4 using dwc_otg
    [  350.356247] usb 1-1.2: New USB device found, idVendor=0bda, idProduct=8176
    [  350.356262] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
    [  350.356272] usb 1-1.2: Product: 802.11n WLAN Adapter
    [  350.356281] usb 1-1.2: Manufacturer: Realtek
    [  350.356290] usb 1-1.2: SerialNumber: 00e04c000001
    [  350.525195] usbcore: registered new interface driver rtl8192cu
    
    • A new network interfaces (wlan0) is added but no IP assigned
    $ ip a
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
        inet 127.0.0.1/8 scope host lo
           valid_lft forever preferred_lft forever
        inet6 ::1/128 scope host 
           valid_lft forever preferred_lft forever
    2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP8000> mtu 1500 qdisc pfifo_fast qlen 1000
        link/ether b8:27:eb:a0:d9:77 brd ff:ff:ff:ff:ff:ff
        inet 192.168.0.11/24 brd 192.168.0.255 scope global eth0
           valid_lft forever preferred_lft forever
        inet6 fe80::ba27:ebff:fea0:d977/64 scope link 
           valid_lft forever preferred_lft forever
    3: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000
        link/ether 40:a5:ef:0e:dc:e5 brd ff:ff:ff:ff:ff:ff
    $ 
    
    • I reconfigured the wifi.key with clear text value before rebooting. Still no Wi-Fi after reboot. No problem with this hardware configuration when running raspbian.

    • Let me know if you need the complete dmesg output after rebooting the recalbox with the Wi-Fi dongle pluged-in.

    • Any idea ?



  • I did an additional test. I'm able to perform a Wi-Fi network scan. My SSID is in the list.

    $ iw dev wlan0 scan | grep SSID
            SSID: FreeWifi
            SSID: FreeWifi_secure
            SSID: le-wifi-de-morgoth
            SSID: FreeWifi
            SSID: Livebox-DE81
            SSID: FreeWifi_secure
            SSID: zita
            SSID: FreeWifi_secure
            SSID: FreeboxNanou14
            SSID: orange
            SSID: Freebox-0C6228
            SSID: FreeWifi_secure
    $ 
    

    So the Wi-Fi dongle seems to work properly. The question is why there is no IP assigned to the wlan0 interface ?


  • Moderator
    Moderator
    Team

    @morgothsauron tu as quoi comme dongle ?



  • @oyyodams C'est un "Comfast" cf-wu810n acheté sur KUBII. Je sais qu'il n'est pas dans la liste des dongle compatibles, mais il fonctionne sans problème avec raspbian.


  • Moderator
    Moderator
    Team

    @morgothsauron wai mais raspbian n'est pas Recalbox.

    On ne l'a pas testé: https://github.com/recalbox/recalbox-os/wiki/Compatibility-(EN)

    Je te conseille celui du recalstore.



  • @oyyodams Je sais que recalbox et raspbian sont différents. Je voulais vérifier sur le forum s'il n'y aurait pas une astuce pour faire fonctionner le wifi. Je vais commander le Edimax EW-7811Un. Merci



  • Ca y'est j'ai recu mon dongle Edimax EW-7811Un et ça fonctionne :)

    Mon interface Wi-Fi a une adresse IP:

    $ ip a
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
        inet 127.0.0.1/8 scope host lo
           valid_lft forever preferred_lft forever
        inet6 ::1/128 scope host
           valid_lft forever preferred_lft forever
    2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP8000> mtu 1500 qdisc pfifo_fast qlen 1000
        link/ether b8:27:eb:a0:d9:77 brd ff:ff:ff:ff:ff:ff
    3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP8000> mtu 1500 qdisc mq qlen 1000
        link/ether 74:da:38:eb:4a:15 brd ff:ff:ff:ff:ff:ff
        inet 192.168.0.11/24 brd 192.168.0.255 scope global wlan0
           valid_lft forever preferred_lft forever
        inet6 fe80::76da:38ff:feeb:4a15/64 scope link
           valid_lft forever preferred_lft forever
    $
    

    Et je peux downloadé un fichier de test:

    $ wget -O /dev/null http://speedtest.wdc01.softlayer.com/downloads/test10.zip
    --2018-08-05 20:11:34--  http://speedtest.wdc01.softlayer.com/downloads/test10.zip
    Resolving speedtest.wdc01.softlayer.com (speedtest.wdc01.softlayer.com)... 208.43.102.250, 2607:f0d0:3001:78::2
    Connecting to speedtest.wdc01.softlayer.com (speedtest.wdc01.softlayer.com)|208.43.102.250|:80... connected.
    HTTP request sent, awaiting response... 200 OK
    Length: 11536384 (11M) [application/zip]
    Saving to: '/dev/null'
    
    /dev/null                     100%[=================================================>]  11.00M   601KB/s    in 20s
    
    2018-08-05 20:11:55 (550 KB/s) - '/dev/null' saved [11536384/11536384]
    
    $
    

    Merci pour l'aide :)


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