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Thread: Slow download speed using Centrino Wireless-N 1030 with Ubuntu 12.04

  1. #11
    Join Date
    Mar 2011
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    19th Hole
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    1,447
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Slow download speed using Centrino Wireless-N 1030 with Ubuntu 12.04

    I am confident that Wild Man will help you get your wireless working properly sooner or later. However, your airwaves are chock full of WIFI signals competing for the same bandwidth. Do you live/work in a heavily built-up residential/commercial area? You may have to try finding the least congested channel to get the best Rx/Tx throughput.

    After you get your own WIFI working again, I recommend downloading and using wavemon to look at the WIFI environment around you:
    Code:
    sudo apt-get install wavemon
    wavemon has to be started with root privileges to scan, so:
    Code:
    sudo wavemon
    ...press <F3> to scan. This will give you a graphical real-time look at the competing networks around you, their channels and their strengths. Find a channel with a combination of the least users and the least competing strengths, and set your router to that channel (remember to save, apply and reboot your router). If your laptop does not see it, reboot your laptop. Again, this is for after you have resolved your current WIFI issue.
    Last edited by DuckHook; April 18th, 2013 at 05:22 AM. Reason: corrected instructions
    Newb: How far must I jump to clear the ledge halfway down?
    Guru: It's bad to jump off cliffs. Let's look at better options.
    Newb: Stop harping about "best practices" and just let me jump.


  2. #12
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    15,740
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Slow download speed using Centrino Wireless-N 1030 with Ubuntu 12.04

    Hi, when you use the wireless you do need to have your ethernet unplugged, and your ethernet is using the wrong driver that is why it is so slow, but I do not do ethernet much so it is not my forte.

    Please post the content of:
    Code:
    gksudo gedit /etc/modprobe.d/iwlwifi.conf
    Also set your wireless settings to match the screnshots.
    Attached Images Attached Images

  3. #13
    Join Date
    Apr 2013
    Beans
    30

    Re: Slow download speed using Centrino Wireless-N 1030 with Ubuntu 12.04

    Think it's important to mention that I was able to get download speeds of way over 511 KB/s using Ubuntu tethered via wi fi to my mobile phone, which is making me think there's an issue with the Router!
    Last edited by SEKarlos; April 18th, 2013 at 05:23 AM.

  4. #14
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    15,740
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Slow download speed using Centrino Wireless-N 1030 with Ubuntu 12.04

    Thats because it is not using the wireless driver that has problems with wifi connections.
    Please do the last thing that I asked with wired connection unplugged and let us know if it helped.
    Thanks

  5. #15
    Join Date
    Apr 2013
    Beans
    30

    Re: Slow download speed using Centrino Wireless-N 1030 with Ubuntu 12.04

    HI Wild Man,

    I've changed the ipv4 and ipv6 settings as advised.

    The content of the iwlwifi.conf file is:

    options iwlwifi 11n_disable=1


    Thanks

    SE

  6. #16
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    15,740
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Slow download speed using Centrino Wireless-N 1030 with Ubuntu 12.04

    Did you also change the dns sever to match the other screenshot?

    Has it helped?
    Thanks

  7. #17
    Join Date
    Apr 2013
    Beans
    30

    Re: Slow download speed using Centrino Wireless-N 1030 with Ubuntu 12.04

    Hi Wild Man,

    Yes, i changed the DNS Server to be 8.8.8.8, 8.8.4.4 for the IPv4 settings. It hasn't resolved the issue unfortunately, still not able to download more than 56 KB/s.

    Do you have any other suggestions ? Really appreciate your assistance with this by the way.


    Rgds

    SE

  8. #18
    Join Date
    Apr 2013
    Beans
    30

    Re: Slow download speed using Centrino Wireless-N 1030 with Ubuntu 12.04

    I did stumble across this information from intel regarding wireless drivers for Linux

    https://downloadcenter.intel.com/Det...adType=Drivers

    The instructions for downloading the the driver are rather complex and I'm reluctant to embark on a path which may make the problem worse, I've only recently crossed the border into Linux world and it's all very unfamiliar!

  9. #19
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    15,740
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Slow download speed using Centrino Wireless-N 1030 with Ubuntu 12.04

    We may have to try a new driver but not yet.

    Please post the output of:
    Code:
    modinfo iwlwifi
    Thanks

  10. #20
    Join Date
    Apr 2013
    Beans
    30

    Re: Slow download speed using Centrino Wireless-N 1030 with Ubuntu 12.04

    Hope it sheds some light, here you go....

    ubuntu@ubuntu-Dell-System-XPS-L502X:~$ modinfo iwlwifi
    filename: /lib/modules/3.2.0-41-generic-pae/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko
    alias: iwlagn
    license: GPL
    author: Copyright(c) 2003-2011 Intel Corporation <ilw@linux.intel.com>
    version: in-tree:
    description: Intel(R) Wireless WiFi Link AGN driver for Linux
    firmware: iwlwifi-5150-2.ucode
    firmware: iwlwifi-5000-5.ucode
    firmware: iwlwifi-6000g2b-6.ucode
    firmware: iwlwifi-6000g2a-5.ucode
    firmware: iwlwifi-6050-5.ucode
    firmware: iwlwifi-6000-4.ucode
    firmware: iwlwifi-100-5.ucode
    firmware: iwlwifi-1000-5.ucode
    firmware: iwlwifi-135-6.ucode
    firmware: iwlwifi-105-6.ucode
    firmware: iwlwifi-2030-6.ucode
    firmware: iwlwifi-2000-6.ucode
    srcversion: 99F715B156678F68AE86AC4
    alias: pci:v00008086d00000892sv*sd00000466bc*sc*i*
    alias: pci:v00008086d00000893sv*sd00000266bc*sc*i*
    alias: pci:v00008086d00000892sv*sd00000066bc*sc*i*
    alias: pci:v00008086d00000892sv*sd00000462bc*sc*i*
    alias: pci:v00008086d00000893sv*sd00000262bc*sc*i*
    alias: pci:v00008086d00000892sv*sd00000062bc*sc*i*
    alias: pci:v00008086d00000894sv*sd00000822bc*sc*i*
    alias: pci:v00008086d00000894sv*sd00000426bc*sc*i*
    alias: pci:v00008086d00000895sv*sd00000226bc*sc*i*
    alias: pci:v00008086d00000894sv*sd00000026bc*sc*i*
    alias: pci:v00008086d00000894sv*sd00000422bc*sc*i*
    alias: pci:v00008086d00000895sv*sd00000222bc*sc*i*
    alias: pci:v00008086d00000894sv*sd00000022bc*sc*i*
    alias: pci:v00008086d0000088Esv*sd00004466bc*sc*i*
    alias: pci:v00008086d0000088Fsv*sd00004266bc*sc*i*
    alias: pci:v00008086d0000088Esv*sd00004066bc*sc*i*
    alias: pci:v00008086d0000088Esv*sd00004464bc*sc*i*
    alias: pci:v00008086d0000088Fsv*sd00004264bc*sc*i*
    alias: pci:v00008086d0000088Esv*sd00004064bc*sc*i*
    alias: pci:v00008086d0000088Esv*sd00004460bc*sc*i*
    alias: pci:v00008086d0000088Fsv*sd00004260bc*sc*i*
    alias: pci:v00008086d0000088Esv*sd00004060bc*sc*i*
    alias: pci:v00008086d00000887sv*sd00004466bc*sc*i*
    alias: pci:v00008086d00000888sv*sd00004266bc*sc*i*
    alias: pci:v00008086d00000887sv*sd00004066bc*sc*i*
    alias: pci:v00008086d00000887sv*sd00004462bc*sc*i*
    alias: pci:v00008086d00000888sv*sd00004262bc*sc*i*
    alias: pci:v00008086d00000887sv*sd00004062bc*sc*i*
    alias: pci:v00008086d00000890sv*sd00004822bc*sc*i*
    alias: pci:v00008086d00000890sv*sd00004426bc*sc*i*
    alias: pci:v00008086d00000891sv*sd00004226bc*sc*i*
    alias: pci:v00008086d00000890sv*sd00004026bc*sc*i*
    alias: pci:v00008086d00000890sv*sd00004422bc*sc*i*
    alias: pci:v00008086d00000891sv*sd00004222bc*sc*i*
    alias: pci:v00008086d00000890sv*sd00004022bc*sc*i*
    alias: pci:v00008086d00000896sv*sd00005027bc*sc*i*
    alias: pci:v00008086d00000896sv*sd00005025bc*sc*i*
    alias: pci:v00008086d00000897sv*sd00005017bc*sc*i*
    alias: pci:v00008086d00000897sv*sd00005015bc*sc*i*
    alias: pci:v00008086d00000896sv*sd00005007bc*sc*i*
    alias: pci:v00008086d00000896sv*sd00005005bc*sc*i*
    alias: pci:v00008086d000008AEsv*sd00001027bc*sc*i*
    alias: pci:v00008086d000008AEsv*sd00001025bc*sc*i*
    alias: pci:v00008086d000008AFsv*sd00001017bc*sc*i*
    alias: pci:v00008086d000008AFsv*sd00001015bc*sc*i*
    alias: pci:v00008086d000008AEsv*sd00001007bc*sc*i*
    alias: pci:v00008086d000008AEsv*sd00001005bc*sc*i*
    alias: pci:v00008086d00000084sv*sd00001316bc*sc*i*
    alias: pci:v00008086d00000084sv*sd00001216bc*sc*i*
    alias: pci:v00008086d00000083sv*sd00001326bc*sc*i*
    alias: pci:v00008086d00000083sv*sd00001226bc*sc*i*
    alias: pci:v00008086d00000083sv*sd00001306bc*sc*i*
    alias: pci:v00008086d00000083sv*sd00001206bc*sc*i*
    alias: pci:v00008086d00000084sv*sd00001315bc*sc*i*
    alias: pci:v00008086d00000084sv*sd00001215bc*sc*i*
    alias: pci:v00008086d00000083sv*sd00001325bc*sc*i*
    alias: pci:v00008086d00000083sv*sd00001225bc*sc*i*
    alias: pci:v00008086d00000083sv*sd00001305bc*sc*i*
    alias: pci:v00008086d00000083sv*sd00001205bc*sc*i*
    alias: pci:v00008086d00000886sv*sd00001317bc*sc*i*
    alias: pci:v00008086d00000886sv*sd00001315bc*sc*i*
    alias: pci:v00008086d00000885sv*sd00001327bc*sc*i*
    alias: pci:v00008086d00000885sv*sd00001325bc*sc*i*
    alias: pci:v00008086d00000885sv*sd00001307bc*sc*i*
    alias: pci:v00008086d00000885sv*sd00001305bc*sc*i*
    alias: pci:v00008086d00000089sv*sd00001316bc*sc*i*
    alias: pci:v00008086d00000089sv*sd00001311bc*sc*i*
    alias: pci:v00008086d00000087sv*sd00001326bc*sc*i*
    alias: pci:v00008086d00000087sv*sd00001321bc*sc*i*
    alias: pci:v00008086d00000087sv*sd00001306bc*sc*i*
    alias: pci:v00008086d00000087sv*sd00001301bc*sc*i*
    alias: pci:v00008086d00000091sv*sd00005226bc*sc*i*
    alias: pci:v00008086d00000091sv*sd00005225bc*sc*i*
    alias: pci:v00008086d00000091sv*sd00005221bc*sc*i*
    alias: pci:v00008086d00000091sv*sd00005207bc*sc*i*
    alias: pci:v00008086d00000091sv*sd00005206bc*sc*i*
    alias: pci:v00008086d00000091sv*sd00005205bc*sc*i*
    alias: pci:v00008086d00000091sv*sd00005201bc*sc*i*
    alias: pci:v00008086d00000090sv*sd00005216bc*sc*i*
    alias: pci:v00008086d00000090sv*sd00005215bc*sc*i*
    alias: pci:v00008086d00000090sv*sd00005211bc*sc*i*
    alias: pci:v00008086d0000008Bsv*sd00005317bc*sc*i*
    alias: pci:v00008086d0000008Bsv*sd00005315bc*sc*i*
    alias: pci:v00008086d0000008Asv*sd00005327bc*sc*i*
    alias: pci:v00008086d0000008Asv*sd00005325bc*sc*i*
    alias: pci:v00008086d0000008Asv*sd00005307bc*sc*i*
    alias: pci:v00008086d0000008Asv*sd00005305bc*sc*i*
    alias: pci:v00008086d00000082sv*sd00001341bc*sc*i*
    alias: pci:v00008086d00000085sv*sd0000C220bc*sc*i*
    alias: pci:v00008086d00000082sv*sd0000C020bc*sc*i*
    alias: pci:v00008086d00000085sv*sd00001316bc*sc*i*
    alias: pci:v00008086d00000085sv*sd00001311bc*sc*i*
    alias: pci:v00008086d00000082sv*sd00001326bc*sc*i*
    alias: pci:v00008086d00000082sv*sd00001321bc*sc*i*
    alias: pci:v00008086d00000082sv*sd00001307bc*sc*i*
    alias: pci:v00008086d00000082sv*sd00001306bc*sc*i*
    alias: pci:v00008086d00000082sv*sd00001301bc*sc*i*
    alias: pci:v00008086d00004239sv*sd00001316bc*sc*i*
    alias: pci:v00008086d00004239sv*sd00001311bc*sc*i*
    alias: pci:v00008086d00004238sv*sd00001111bc*sc*i*
    alias: pci:v00008086d0000422Csv*sd00001326bc*sc*i*
    alias: pci:v00008086d0000422Csv*sd00001321bc*sc*i*
    alias: pci:v00008086d0000422Csv*sd00001307bc*sc*i*
    alias: pci:v00008086d0000422Csv*sd00001306bc*sc*i*
    alias: pci:v00008086d0000422Csv*sd00001301bc*sc*i*
    alias: pci:v00008086d0000422Bsv*sd00001121bc*sc*i*
    alias: pci:v00008086d0000422Bsv*sd00001101bc*sc*i*
    alias: pci:v00008086d0000423Dsv*sd00001316bc*sc*i*
    alias: pci:v00008086d0000423Dsv*sd00001216bc*sc*i*
    alias: pci:v00008086d0000423Dsv*sd00001311bc*sc*i*
    alias: pci:v00008086d0000423Dsv*sd00001211bc*sc*i*
    alias: pci:v00008086d0000423Csv*sd00001321bc*sc*i*
    alias: pci:v00008086d0000423Csv*sd00001221bc*sc*i*
    alias: pci:v00008086d0000423Csv*sd00001306bc*sc*i*
    alias: pci:v00008086d0000423Csv*sd00001206bc*sc*i*
    alias: pci:v00008086d0000423Csv*sd00001301bc*sc*i*
    alias: pci:v00008086d0000423Csv*sd00001201bc*sc*i*
    alias: pci:v00008086d0000423Bsv*sd00001011bc*sc*i*
    alias: pci:v00008086d0000423Asv*sd00001021bc*sc*i*
    alias: pci:v00008086d0000423Asv*sd00001001bc*sc*i*
    alias: pci:v00008086d00004236sv*sd00001114bc*sc*i*
    alias: pci:v00008086d00004236sv*sd00001014bc*sc*i*
    alias: pci:v00008086d00004236sv*sd00001111bc*sc*i*
    alias: pci:v00008086d00004236sv*sd00001011bc*sc*i*
    alias: pci:v00008086d00004235sv*sd00001104bc*sc*i*
    alias: pci:v00008086d00004235sv*sd00001004bc*sc*i*
    alias: pci:v00008086d00004235sv*sd00001101bc*sc*i*
    alias: pci:v00008086d00004235sv*sd00001001bc*sc*i*
    alias: pci:v00008086d00004235sv*sd00001124bc*sc*i*
    alias: pci:v00008086d00004235sv*sd00001024bc*sc*i*
    alias: pci:v00008086d00004235sv*sd00001121bc*sc*i*
    alias: pci:v00008086d00004235sv*sd00001021bc*sc*i*
    alias: pci:v00008086d00004237sv*sd00001316bc*sc*i*
    alias: pci:v00008086d00004237sv*sd00001216bc*sc*i*
    alias: pci:v00008086d00004237sv*sd00001315bc*sc*i*
    alias: pci:v00008086d00004237sv*sd00001215bc*sc*i*
    alias: pci:v00008086d00004237sv*sd00001314bc*sc*i*
    alias: pci:v00008086d00004237sv*sd00001214bc*sc*i*
    alias: pci:v00008086d00004237sv*sd00001311bc*sc*i*
    alias: pci:v00008086d00004237sv*sd00001211bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001326bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001226bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001325bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001225bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001324bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001224bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001321bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001221bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001306bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001206bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001305bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001205bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001304bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001204bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001301bc*sc*i*
    alias: pci:v00008086d00004232sv*sd00001201bc*sc*i*
    depends: mac80211,cfg80211
    intree: Y
    vermagic: 3.2.0-41-generic-pae SMP mod_unload modversions 686
    parm: swcrypto:using crypto in software (default 0 [hardware]) (int)
    parm: queues_num:number of hw queues. (int)
    parm: 11n_disable:disable 11n functionality (int)
    parm: amsdu_size_8K:enable 8K amsdu size (int)
    parm: fw_restart:restart firmware in case of error (int)
    parm: ucode_alternative:specify ucode alternative to use from ucode file (int)
    parm: antenna_coupling:specify antenna coupling in dB (defualt: 0 dB) (int)
    parm: bt_ch_inhibition:Enable BT channel inhibition (default: enable) (bool)
    parm: plcp_check:Check plcp health (default: 1 [enabled]) (bool)
    parm: ack_check:Check ack health (default: 0 [disabled]) (bool)
    parm: wd_disableisable stuck queue watchdog timer 0=system default, 1=disable, 2=enable (default: 0) (int)
    parm: bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
    parm: led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking (default: 0) (int)
    parm: power_save:enable WiFi power management (default: disable) (bool)
    parm: power_level:default power save level (range from 1 - 5, default: 1) (int)
    parm: auto_agg:enable agg w/o check traffic load (default: enable) (bool)
    parm: no_sleep_autoadjust:don't automatically adjust sleep level according to maximum network latency (default: true) (bool)
    ubuntu@ubuntu-Dell-System-XPS-L502X:~$

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