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Thread: Ubuntu 12.10 server wireless not working

  1. #1
    Join Date
    Oct 2011

    Ubuntu 12.10 server wireless not working


    I just installed a new server and I need a wireless connection to make it work. I had been trying for 3 days to make it work without success and I am not sure what is the problem. I would appreciate some help.

    Here under are all the details from the configuration and wireless details. Network manager is already uninstalled.


    auto wlan0
    #iface wlan0 inet dhcp
    iface wlan0 inet static
    wpa-driver iwlwifi
    wpa-conf managed
    wpa-ssid SOHO
    wpa-ap-scan 1
    wpa-proto RSN
    wpa-pairwise CCMP
    wpa-group CCMP
    wpa-key-mgmt WPA-PSK
    wpa-psk PedroPicapiedra

    WS01:~$ sudo hwinfo --wlan
    > hal.1: read hal dataprocess 2883: arguments to dbus_move_error() were incorrect, assertion "(dest) == NULL || !dbus_error_is_set ((dest))" failed in file ../../dbus/dbus-errors.c line 282.
    This is normally a bug in some application using the D-Bus library.
    libhal.c 3483 : Error unsubscribing to signals, error=The name org.freedesktop.Hal was not provided by any .service files
    20: PCI 300.0: 0282 WLAN controller
    [Created at pci.318]
    Unique ID: y9sn.fNsjQBRm576
    Parent ID: qTvu.mI4JwHLbTlD
    SysFS ID: /devices/pci0000:00/0000:00:1c.1/0000:03:00.0
    SysFS BusID: 0000:03:00.0
    Hardware Class: network
    Model: "Intel WLAN controller"
    Vendor: pci 0x8086 "Intel Corporation"
    Device: pci 0x0085
    SubVendor: pci 0x8086 "Intel Corporation"
    SubDevice: pci 0x1311
    Revision: 0x34
    Driver: "iwlwifi"
    Driver Modules: "iwlwifi"
    Device File: wlan0
    Features: WLAN
    Memory Range: 0xf3000000-0xf3001fff (rw,non-prefetchable)
    IRQ: 46 (no events)
    HW Address: 60:67:20:b8:58:98
    Link detected: no
    WLAN channels: 1 2 3 4 5 6 7 8 9 10 11 12 13 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140
    WLAN frequencies: 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 2.467 2.472 5.18 5.2 5.22 5.24 5.26 5.28 5.3 5.32 5.5 5.52 5.54 5.56 5.58 5.6 5.62 5.64 5.66 5.68 5.7
    WLAN encryption modes: WEP40 WEP104 TKIP CCMP
    WLAN authentication modes: open sharedkey wpa-psk wpa-eap
    Module Alias: "pci:v00008086d00000085sv00008086sd00001311bc02sc8 0i00"
    Driver Info #0:
    Driver Status: iwlwifi is active
    Driver Activation Cmd: "modprobe iwlwifi"
    Config Status: cfg=new, avail=yes, need=no, active=unknown
    Attached to: #11 (PCI bridge)

    WS01:~$ sudo lshw -C network

    *-network DISABLED
    description: Ethernet interface
    product: 82579LM Gigabit Network Connection
    vendor: Intel Corporation
    physical id: 19
    bus info: pci@0000:00:19.0
    logical name: eth0
    version: 04
    serial: 3c:97:0e:10:99:55
    size: 1Gbit/s
    capacity: 1Gbit/s
    width: 32 bits
    clock: 33MHz
    capabilities: pm msi cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
    configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.0.0-k duplex=full firmware=0.13-3 latency=0 link=no multicast=yes port=twisted pair speed=1Gbit/s
    resources: irq:44 memory:f3a00000-f3a1ffff memory:f3a3b000-f3a3bfff ioport:6080(size=32)
    description: Wireless interface
    product: Centrino Advanced-N 6205
    vendor: Intel Corporation
    physical id: 0
    bus info: pci@0000:03:00.0
    logical name: wlan0
    version: 34
    serial: 60:67:20:b8:58:98
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
    configuration: broadcast=yes driver=iwlwifi driverversion=3.5.0-26-generic firmware= ip= latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
    resources: irq:47 memory:f3000000-f3001fff

    WS01:~$ sudo iwlist scan

    Cell 10 - Address: CC:5D:4E:AA:4D:24
    Frequency:2.432 GHz (Channel 5)
    Quality=37/70 Signal level=-73 dBm
    Encryption keyn
    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
    18 Mb/s; 36 Mb/s; 54 Mb/s
    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
    Extra: Last beacon: 3000ms ago
    IE: Unknown: 0004534F484F
    IE: Unknown: 010882848B961224486C
    IE: Unknown: 030105
    IE: Unknown: 2A0104
    IE: Unknown: 32040C183060
    IE: Unknown: 2D1AEE1117FFFF000001000000000000000000000000000000 000000
    IE: Unknown: 3D1605000600000000000000000000000000000000000000
    IE: Unknown: 3E0100
    IE: IEEE 802.11i/WPA2 Version 1
    Group Cipher : CCMP
    Pairwise Ciphers (1) : CCMP
    Authentication Suites (1) : PSK
    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F 00
    IE: Unknown: 0B05040022127A
    IE: Unknown: 4A0E14000A002C01C800140005001900
    IE: Unknown: 7F0101
    IE: Unknown: DD07000C4300000000
    IE: Unknown: 07064E4C20010D10

    WS01:/etc/network$ ifconfig

    wlan0 Link encap:Ethernet HWaddr 60:67:20:b8:58:98
    inet addr: Bcast: Mask:
    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

    WS01:/etc/network$ iwconfig
    eth0 no wireless extensions.

    lo no wireless extensions.

    wlan0 IEEE 802.11abgn ESSIDff/any
    Mode:Managed Access Point: Not-Associated Tx-Power=15 dBm
    Retry long limit:7 RTS thrff Fragment thrff
    Power Managementn

    WS01:/etc/network$ dmesg | grep wlan
    [ 13.285610] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

  2. #2
    Join Date
    Oct 2011

    Re: Ubuntu 12.10 server wireless not working

    Thanks everybody but fortunately after a flashlight I got it working, I was using the wireless card driver as wpa-driver which was wrong in the configuration, after changing it to "WEXT" and restarted my computer I got connected to my wireless network.

    WS01:/etc$ iwconfig
    eth0 no wireless extensions.

    lo no wireless extensions.

    wlan0 IEEE 802.11abgn ESSID:"SOHO"
    Mode:Managed Frequency:2.432 GHz Access Point: CC:5D:4E:AA:4D:24
    Bit Rate=1 Mb/s Tx-Power=15 dBm
    Retry long limit:7 RTS thrff Fragment thrff
    Power Managementff
    Link Quality=70/70 Signal level=-37 dBm
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:779 Invalid misc:19 Missed beacon:0

    It is quite confusing the different configuration options available on the web, I was not sure what is the function of the wpa_supplicant.conf and which of all the different options on the web to use. Under this configiration wpa_supplicant.conf is not necessary as I deleted and reboot the server after having the connection up and running without any problem after.

    I think this configuration under the /etc/network/interfaces file is the most simple and clear to use as everything is defined under one file. Below the parameters and how to use them.

    auto wlan0:
    Your network interface (e.g. wlan0, eth1, rausb0, ra0, etc.).

    iface wlan0 inet static:
    Self-explanatory... I am using a Static IP instead of DHCP. "iface wlan0" must correspond to your network interface (see above).

    address, netmask, [..], dns-nameservers:
    Also self-explanatory... Be aware that "broadcast" needs to end with ".255" for negotiation with the router. These lines need to be according to your own (static) network settings. For DHCP see further below.

    wpa-driver: (not the wireless car driver)
    Use "wext" only. All other drivers are outdated no longer used.

    Your network's ESSID (no quotes ""). Please avoid blanks/spaces as they will created problems during key generation (see below).

    "1" = Broadcast of ESSID.
    "2" = Hidden broadcast of ESSID.

    "RSN" = WPA(2)
    "WPA" = WPA(1)

    wpa-pairwise & wpa-group:
    "CCMP" = AES cipher as part of WPA(2) standard.
    "TKIP" = TKIP cipher as part of WPA(1) standard.

    "WPA-PSK" = Authentication via pre-shared key (see 'key generation' further below).
    "WPA-EAP" = Authentication via enterprise authentication server.

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