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Thread: Ubuntu wireless not working after 1 minute

  1. #1
    Join Date
    Oct 2011
    Beans
    2

    Ubuntu wireless not working after 1 minute

    Hi, I am a new ubuntu user (less than two months) and is having problems with the connection about one or two weeks ago. I used to click update whenever the update manager pops out. But one day the connection drops every 3 to 5 minutes, I have been searching a lot and tried a lot of different ways to try to solve the problem including:
    - Remove network manager and install wicd
    - Remove wicd and go back to network manager
    - "sudo iwconfig wlan0 power off" in terminal
    - black listing in etc/modprobe.d (couldn't remember what i black-listed)
    - Installing backports
    - Tried to update everything I could

    But the internet has stayed the same by disconnecting with the connection icon say it's still on.
    So I decided to re-install ubuntu and thought everything will work just as smooth as how I installed it two months ago. Unfortunately, the internet connection has become worse that it drops in every minute.
    I tried to send the ping but the successful packets trasmitted is 0% (out of 5).
    I really hope the networking can get back to live, since as a developer, ubuntu is quite important to me..

    All the information I know about my laptop is the model name: HP Pavilion dv5

    sudo lshw -C network
    Code:
      *-network               
           description: Wireless interface
           product: PRO/Wireless 5100 AGN [Shiloh] Network Connection
           vendor: Intel Corporation
           physical id: 0
           bus info: pci@0000:02:00.0
           logical name: wlan0
           version: 00
           serial: 00:16:ea:d2:25:e0
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
           configuration: broadcast=yes driver=iwlagn ip=192.168.1.100 latency=0 multicast=yes wireless=IEEE 802.11abgn
           resources: irq:33 memory:de200000-de201fff
      *-network
           description: Ethernet interface
           product: RTL8111/8168B PCI Express Gigabit Ethernet controller
           vendor: Realtek Semiconductor Co., Ltd.
           physical id: 0
           bus info: pci@0000:03:00.0
           logical name: eth0
           version: 02
           serial: 00:1e:68:db:4e:19
           size: 10MB/s
           capacity: 1GB/s
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half latency=0 link=no multicast=yes port=MII speed=10MB/s
           resources: irq:31 ioport:6000(size=256) memory:d4010000-d4010fff(prefetchable) memory:d4000000-d400ffff(prefetchable) memory:d4020000-d402ffff(prefetchable)
    nm-tool
    Code:
    NetworkManager Tool
    
    State: connected
    
    - Device: wlan0  [Auto NOK] ----------------------------------------------------
      Type:              802.11 WiFi
      Driver:            iwlagn
      State:             connected
      Default:           yes
      HW Address:        00:16:EA:D2:25:E0
    
      Capabilities:
        Speed:           54 Mb/s
    
      Wireless Properties
        WEP Encryption:  yes
        WPA Encryption:  yes
        WPA2 Encryption: yes
    
      Wireless Access Points (* = current AP)
        TP-LINK:         Infra, 54:E6:FC:FF:60:F5, Freq 2437 MHz, Rate 54 Mb/s, Strength 34 WPA WPA2
        Hawkes:          Infra, 00:22:B0:8C:B5:D6, Freq 2412 MHz, Rate 54 Mb/s, Strength 32 WEP
        Router:          Infra, 00:25:86:BD:59:B2, Freq 2437 MHz, Rate 54 Mb/s, Strength 32 WPA WPA2
        SandS:           Infra, 00:1C:DF:03:D6:56, Freq 2437 MHz, Rate 54 Mb/s, Strength 47 WPA WPA2
        *NOK:            Infra, 74:EA:3A:B1:6F:AD, Freq 2437 MHz, Rate 54 Mb/s, Strength 100 WPA
        The Hurleys:     Infra, 54:E6:FC:FF:60:94, Freq 2412 MHz, Rate 54 Mb/s, Strength 37 WPA2
        vodafone94B1:    Infra, 62:C7:14:14:94:B0, Freq 2417 MHz, Rate 54 Mb/s, Strength 40 WPA
    
      IPv4 Settings:
        Address:         192.168.1.100
        Prefix:          24 (255.255.255.0)
        Gateway:         192.168.1.1
    
        DNS:             192.168.1.1
    
    
    - Device: eth0 -----------------------------------------------------------------
      Type:              Wired
      Driver:            r8169
      State:             unavailable
      Default:           no
      HW Address:        00:1E:68:DB:4E:19
    
      Capabilities:
        Carrier Detect:  yes
        Speed:           10 Mb/s
    
      Wired Properties
        Carrier:         off
    ispci -nn | grep 0208
    Code:
    02:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection [8086:4237]
    iwconfig
    Code:
    lo        no wireless extensions.
    
    eth0      no wireless extensions.
    
    wlan0     IEEE 802.11abgn  ESSID:"NOK"  
              Mode:Managed  Frequency:2.437 GHz  Access Point: 74:EA:3A:B1:6F:AD   
              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=-33 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.
    rfkill list all
    Code:
    0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
    1: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
    lsmod
    Code:
    Module                  Size  Used by
    aes_i586                7268  2 
    aes_generic            26863  1 aes_i586
    nls_iso8859_1           3249  2 
    nls_cp437               4919  2 
    vfat                    8901  2 
    fat                    47767  1 vfat
    binfmt_misc             6587  1 
    ppdev                   5259  0 
    fbcon                  35102  71 
    tileblit                2031  1 fbcon
    font                    7557  1 fbcon
    bitblit                 4707  1 fbcon
    softcursor              1189  1 bitblit
    vga16fb                11385  0 
    vgastate                8961  1 vga16fb
    rfcomm                 33421  4 
    sco                     7885  2 
    bridge                 45582  0 
    stp                     1655  1 bridge
    bnep                    9436  2 
    l2cap                  30624  16 rfcomm,bnep
    snd_hda_codec_nvhdmi     3840  1 
    snd_hda_codec_idt      51914  1 
    arc4                    1153  2 
    snd_hda_intel          21877  2 
    snd_hda_codec          74201  3 snd_hda_codec_nvhdmi,snd_hda_codec_idt,snd_hda_intel
    snd_hwdep               5412  1 snd_hda_codec
    snd_pcm_oss            35308  0 
    snd_mixer_oss          13746  1 snd_pcm_oss
    snd_pcm                70662  3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
    snd_seq_dummy           1338  0 
    snd_seq_oss            26726  0 
    snd_seq_midi            4557  0 
    snd_rawmidi            19056  1 snd_seq_midi
    snd_seq_midi_event      6003  2 snd_seq_oss,snd_seq_midi
    snd_seq                47263  6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
    snd_timer              19098  2 snd_pcm,snd_seq
    snd_seq_device          5700  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
    iwlagn                105566  0 
    nouveau               467048  2 
    iwlcore               105922  1 iwlagn
    ttm                    49943  1 nouveau
    jmb38x_ms               7311  0 
    drm_kms_helper         29297  1 nouveau
    snd                    54148  16 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
    mac80211              204922  2 iwlagn,iwlcore
    joydev                  8708  0 
    uvcvideo               56990  0 
    videodev               34361  1 uvcvideo
    v4l1_compat            13251  2 uvcvideo,videodev
    psmouse                63245  0 
    serio_raw               3978  0 
    btusb                  10925  2 
    bluetooth              49892  9 rfcomm,sco,bnep,l2cap,btusb
    memstick                8237  1 jmb38x_ms
    sdhci_pci               5470  0 
    sdhci                  15462  1 sdhci_pci
    lirc_ene0100            6536  0 
    lirc_dev                8884  1 lirc_ene0100
    video                  17375  0 
    output                  1871  1 video
    drm                   162471  4 nouveau,ttm,drm_kms_helper
    i2c_algo_bit            5028  1 nouveau
    soundcore               6620  1 snd
    snd_page_alloc          7076  2 snd_hda_intel,snd_pcm
    hp_accel               11144  0 
    lis3lv02d               6007  1 hp_accel
    input_polldev           2482  1 lis3lv02d
    led_class               2864  3 iwlcore,sdhci,hp_accel
    cfg80211              126485  3 iwlagn,iwlcore,mac80211
    intel_agp              24177  0 
    agpgart                31724  3 ttm,drm,intel_agp
    lp                      7028  0 
    parport                32635  2 ppdev,lp
    usbhid                 36110  0 
    hid                    67032  1 usbhid
    usb_storage            39425  2 
    ohci1394               26950  0 
    ahci                   32008  2 
    ieee1394               81181  1 ohci1394
    r8169                  33884  0 
    mii                     4381  1 r8169
    REALLY APPRECIATE YOUR HELP !! THANKS !!!!!

  2. #2
    Join Date
    Oct 2011
    Beans
    2

    Re: Ubuntu wireless not working after 1 minute

    OOOOOOOOOOOOOOOOO

    It's working now thanks to this thread =D
    Will keep add on to this post if there is anymore problem ...

    http://ubuntuforums.org/showpost.php...80&postcount=2

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