Results 1 to 3 of 3

Thread: Lucid Lynx killed the Intel PRO/Wireless 3945ABG on my Panasonic Toughbook

  1. #1
    Join Date
    Feb 2009
    Beans
    22
    Distro
    Ubuntu 14.04 Trusty Tahr

    Lucid Lynx killed the Intel PRO/Wireless 3945ABG on my Panasonic Toughbook

    I used 8.04 Hardy Heron happily for a long time, and my wireless worked fine, but after upgrading to 10.04 Lucid Lynx my wireless no longer works.

    I began by trying to set up my wireless connection with NetworkManager. Nothing would work, so I finally followed someone's advice and uninstalled NetworkManager, hoping instead to configure manually.

    The problem is: During manual configuration, I cannot set the WPA key.

    My wireless card appears to be eth1:

    Code:
    $ sudo lshw -C network
      *-network               
           description: Wireless interface
           product: PRO/Wireless 3945ABG [Golan] Network Connection
           vendor: Intel Corporation
           physical id: 0
           bus info: pci@0000:03:00.0
           logical name: eth1
           version: 02
           serial: 00:1b:77:a3:32:91
           width: 32 bits
           clock: 33MHz
           capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
           configuration: broadcast=yes driver=iwl3945 latency=0 multicast=yes wireless=IEEE 802.11abg
           resources: irq:26 memory:d0000000-d0000fff
    My /etc/network/interfaces is as follows:

    Code:
    auto lo
    iface lo inet loopback
    
    auto eth1
    iface eth1 inet dhcp
    
    auto ath0
    #iface ath0 inet dhcp
    
    auto wlan0
    #iface wlan0 inet dhcp
    
    iface eth2 inet dhcp
    auto eth2
    Immediately after startup, we have:

    Code:
    $ sudo iwconfig
    lo        no wireless extensions.
    
    eth2      no wireless extensions.
    
    eth1      IEEE 802.11abg  ESSID:off/any  
              Mode:Managed  Access Point: Not-Associated   Tx-Power=15 dBm   
              Retry  long limit:7   RTS thr:off   Fragment thr:off
              Encryption key:off
              Power Management:off
              
    pan0      no wireless extensions.
    I then set the essid (and yes, I am writing my actual essid in place of '<my_essid>' ):

    Code:
    $ sudo iwconfig eth1 essid <my_essid>
    $ sudo iwconfig
    lo        no wireless extensions.
    
    eth2      no wireless extensions.
    
    eth1      IEEE 802.11abg  ESSID:"<my_essid>"  
              Mode:Managed  Access Point: Not-Associated   Tx-Power=15 dBm   
              Retry  long limit:7   RTS thr:off   Fragment thr:off
              Encryption key:off
              Power Management:off
              
    pan0      no wireless extensions.
    which works fine. However, I cannot set the key:

    Code:
    $ sudo iwconfig eth1 key s:<my_key>
    Error for wireless request "Set Encode" (8B2A) :
        SET failed on device eth1 ; Invalid argument.
    Can anybody tell me what I'm doing wrong here?
    (Note: I am indeed writing my plaintext ASCII key after the 's:'.)


    Now, I have also tried another /etc/network/interfaces file:

    Code:
    auto lo
    iface lo inet loopback
    
    auto eth1
    iface eth1 inet dhcp
    wpa-driver wext
    wpa-key-mgmt WPA-PSK
    wpa-proto WPA
    wpa-ssid <my_essid>
    
    #iface eth2 inet dhcp
    
    auto ath0
    #iface ath0 inet dhcp
    
    auto wlan0
    #iface wlan0 inet dhcp
    
    iface eth2 inet dhcp
    auto eth2
    This one was produced by NetworkManager, before I uninstalled it.
    The strange thing that happens with this one is that immediately
    after startup we get the somewhat promising output:

    Code:
    $ iwconfig
    lo        no wireless extensions.
    
    eth2      no wireless extensions.
    
    eth1      IEEE 802.11abg  ESSID:"<my_essid>"  
              Mode:Managed  Frequency:2.412 GHz  Access Point:
              01:23:45:67:89:AB   
              Bit Rate=54 Mb/s   Tx-Power=15 dBm   
              Retry  long limit:7   RTS thr:off   Fragment thr:off
              Power Management:off
              Link Quality=70/70  Signal level=-38 dBm  
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:0  Invalid misc:0   Missed beacon:0
    
    pan0      no wireless extensions.
    However, if we re-execute this command a few seconds later:

    Code:
    $ iwconfig
    lo        no wireless extensions.
    
    eth2      no wireless extensions.
    
    eth1      IEEE 802.11abg  ESSID:off/any  
              Mode:Managed  Frequency:2.412 GHz  Access Point:
              Not-Associated   
              Tx-Power=15 dBm   
              Retry  long limit:7   RTS thr:off   Fragment thr:off
              Power Management:off
              
    pan0      no wireless extensions.
    we have lost a lot! What on Earth is going on here?

    In any case, even with this (improved?) /etc/network/interfaces file, I still get the very same:
    Code:
    $ sudo iwconfig eth1 key s:<my_key>
    Error for wireless request "Set Encode" (8B2A) :
        SET failed on device eth1 ; Invalid argument.
    Does anybody know what I'm doing wrong?

    Thank you very much in advance for any advice you can provide.

  2. #2
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    21,580
    Distro
    Ubuntu 15.04 Vivid Vervet

    Re: Lucid Lynx killed the Intel PRO/Wireless 3945ABG on my Panasonic Toughbook

    sudo iwconfig eth1 key s:<my_key>
    This is appropriate for WEP; you are using WPA. Try this:
    Code:
    auto lo
    iface lo inet loopback
    
    auto eth1
    iface eth1 inet dhcp
    wpa-ssid <my_essid>
    wpa-psk <my_key>
    Restart networking and you should see the DHCP stanza and see it connect.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #3
    Join Date
    Feb 2009
    Beans
    22
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Lucid Lynx killed the Intel PRO/Wireless 3945ABG on my Panasonic Toughbook

    Problem solved!!! Thanks a million for this fast and effective response!

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •