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Thread: Problems with usb wireless adaptor

  1. #1
    Join Date
    Nov 2007
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    DK
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    Distro
    Ubuntu 10.04 Lucid Lynx

    Problems with usb wireless adaptor

    I recently bought a TRENDnet TEW-648UB wireless adaptor but I can't seem to get it to work. When I plug it in the light on the 'WPS button' flashes, but nothing else happens. Does anyone know if 10.04 is supposed to support this devise and if not, how to get it to work?

  2. #2
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    Re: Problems with usb wireless adaptor

    Bump

  3. #3
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    Re: Problems with usb wireless adaptor

    Anyone?

  4. #4
    Join Date
    Nov 2009
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    119

    Re: Problems with usb wireless adaptor

    Quote Originally Posted by Nidding View Post
    I recently bought a TRENDnet TEW-648UB wireless adaptor but I can't seem to get it to work. When I plug it in the light on the 'WPS button' flashes, but nothing else happens. Does anyone know if 10.04 is supposed to support this devise and if not, how to get it to work?
    Hi, I am quite new to Ubuntu myself but I read and learn a lot from this forum and info from the internet.

    Perhaps you could start by posting the outputs of

    Code:
    lsusb
    Code:
    lsmod
    Code:
    sudo lshw -C network
    You can save the outputs to a text file and transfer (via usb dongle) to a internet enabled computer for posting back here.

    Hopefully some one more IT savvy can help.

    I will try to at least provide some useful links.

    Thanks

  5. #5
    Join Date
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    Ubuntu 10.04 Lucid Lynx

    Re: Problems with usb wireless adaptor

    Code:
    nidding@nidding-desktop:~$ lsusb
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 003 Device 002: ID 045e:009d Microsoft Corp. 
    Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 001 Device 006: ID 0bda:8171 Realtek Semiconductor Corp. 
    Bus 001 Device 004: ID 15d9:0a33 Dexon Mouse
    Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Code:
    nidding@nidding-desktop:~$ lsmod
    Module                  Size  Used by
    nls_utf8                1069  0 
    isofs                  29250  0 
    ppp_deflate             3682  0 
    zlib_deflate           19568  1 ppp_deflate
    bsd_comp                4811  0 
    ppp_async               6734  0 
    crc_ccitt               1339  1 ppp_async
    binfmt_misc             6587  1 
    snd_intel8x0           25588  2 
    snd_ac97_codec        100646  1 snd_intel8x0
    ac97_bus                1002  1 snd_ac97_codec
    snd_pcm_oss            35308  0 
    snd_mixer_oss          13746  1 snd_pcm_oss
    snd_pcm                70662  3 snd_intel8x0,snd_ac97_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
    fbcon                  35102  71 
    tileblit                2031  1 fbcon
    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
    font                    7557  1 fbcon
    bitblit                 4707  1 fbcon
    softcursor              1189  1 bitblit
    vga16fb                11385  1 
    vgastate                8961  1 vga16fb
    snd                    54148  14 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
    i915                  282354  1 
    dell_wmi                1793  0 
    drm_kms_helper         29297  1 i915
    ppdev                   5259  0 
    dcdbas                  5422  0 
    option                 15654  0 
    usbserial              33019  1 option
    soundcore               6620  1 snd
    drm                   162471  3 i915,drm_kms_helper
    intel_agp              24177  2 i915
    psmouse                63245  0 
    serio_raw               3978  0 
    parport_pc             25962  1 
    snd_page_alloc          7076  2 snd_intel8x0,snd_pcm
    joydev                  8708  0 
    shpchp                 28820  0 
    i2c_algo_bit            5028  1 i915
    video                  17375  1 i915
    agpgart                31724  3 drm,intel_agp
    output                  1871  1 video
    lp                      7028  0 
    parport                32635  3 ppdev,parport_pc,lp
    hid_microsoft           2647  0 
    b44                    25542  0 
    usb_storage            39425  0 
    ssb                    37336  1 b44
    usbhid                 36110  0 
    hid                    67032  2 hid_microsoft,usbhid
    floppy                 53016  0 
    mii                     4381  1 b44
    and
    Code:
    nidding@nidding-desktop:~$ sudo lshw -C network
    [sudo] password for nidding: 
      *-network               
           description: Ethernet interface
           product: BCM4401 100Base-T
           vendor: Broadcom Corporation
           physical id: 9
           bus info: pci@0000:01:09.0
           logical name: eth0
           version: 01
           serial: 00:0b:db:be:5f:1d
           size: 10MB/s
           capacity: 100MB/s
           width: 32 bits
           clock: 33MHz
           capabilities: pm bus_master cap_list rom ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=b44 driverversion=2.0 duplex=half latency=64 link=no multicast=yes port=twisted pair speed=10MB/s
           resources: irq:17 memory:fe9fe000-fe9fffff memory:28000000-28003fff(prefetchable)
    Hope this can shed some light on what's wrong

  6. #6
    Join Date
    Nov 2009
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    119

    Re: Problems with usb wireless adaptor

    Hi there, there appears to be a workable solution for a usb wireless adapter with the same device ID 0bda:8171 at this link http://csiuo.com/drupal/content/inst...der-ubuntu-104

    You must decide whether or not to give it a try.

    Please use copy and paste technique to get the codes/commands into a Terminal window on the Ubuntu machine with the wireless problem.

    The Terminal commands/codes are as follows (these are taken from the above link):

    Code:
    echo 'install r8192s_usb modprobe --ignore-install r8192s_usb ; /bin/echo "0bda 8171" > /sys/bus/usb/drivers/rtl819xU/new_id' | sudo tee /etc/modprobe.d/r8192s_usb.conf
    Code:
    sudo ln -s /lib/firmware/RTL8192SE /lib/firmware/RTL8192SU
    Code:
    sudo modprobe -rf r8192s_usb
    Code:
    sudo modprobe r8192s_usb
    All credit goes to the person who posted at the above link.

    Good luck and let us know if it works.

  7. #7
    Join Date
    Aug 2010
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    1

    Re: Problems with usb wireless adaptor

    Thank you b k for the repost! works perfectly!

  8. #8
    Join Date
    Feb 2010
    Beans
    7

    Re: Problems with usb wireless adaptor

    I've the same usb wireless adapter and the solution above didn't worked for me. Could see the AP but can't connect (keep on asking for the password).
    So I decided to compile the Realtek's driver for Linux from their site: http://www.realtek.com.tw/downloads/...Downloads=true
    Just downloaded archive, followed instructions that is in there and everything works perfectly. Hope that will help someone else out there.
    Ubuntu ROCKS

  9. #9
    Join Date
    Feb 2007
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    Tallinn, Estonia
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    31

    Re: Problems with usb wireless adaptor

    If somebody in this thread has tew-648ub usb wifi device, please add your comments, results onto following bug in order to get it working out of box:
    https://bugs.launchpad.net/ubuntu/+s...ux/+bug/645824

    regards,

    erki

  10. #10
    Join Date
    Nov 2007
    Location
    DK
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    Ubuntu 10.04 Lucid Lynx

    Re: Problems with usb wireless adaptor

    Quote Originally Posted by b k View Post
    Hi there, there appears to be a workable solution for a usb wireless adapter with the same device ID 0bda:8171 at this link http://csiuo.com/drupal/content/inst...der-ubuntu-104

    You must decide whether or not to give it a try.

    Please use copy and paste technique to get the codes/commands into a Terminal window on the Ubuntu machine with the wireless problem.

    The Terminal commands/codes are as follows (these are taken from the above link):

    Code:
    echo 'install r8192s_usb modprobe --ignore-install r8192s_usb ; /bin/echo "0bda 8171" > /sys/bus/usb/drivers/rtl819xU/new_id' | sudo tee /etc/modprobe.d/r8192s_usb.conf
    Code:
    sudo ln -s /lib/firmware/RTL8192SE /lib/firmware/RTL8192SU
    Code:
    sudo modprobe -rf r8192s_usb
    Code:
    sudo modprobe r8192s_usb
    All credit goes to the person who posted at the above link.

    Good luck and let us know if it works.
    This seems to work for me as well, as I can now see the local networks and try to connect to them. However, I can't seem to actually connect to my own, which is kind of a puzzle to me. This could easily be due to a security setting I have overlooked however.

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