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Thread: Poor wireless performance on ubuntu 11.10

  1. #31
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    Jun 2009
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    Re: Poor wireless performance on ubuntu 11.10

    Being that I tried a number of Tweaks from different sources, can you tell me how to uninstall all wifi drivers and then reinstall a clean copy of the correct driver?

    I should also mention that I have upgraded to 12.04 also, I did not configure Wifi in earlier versions of ubuntu. So I don't know if I would have had any issues with earlier versions of Ubunutu.


    UPDATE:
    There are 3 things I update. I have about a 60 percent increase in performance now. My service is pegged full tilt for my bandwidth

    1) I added the DNS settings. Why are those required please.
    2) I reset my MTU's to automatic. When it was very slow one day, I manually set the MTU's and performance increased. Now it is better on automatic.

    3) The notebook is only a few feet from the access point during this test. Before it was about 2 rooms or 20 feet further away.

    The first 2 times that I ran speedtest.net I got errors. The first time it said LATENCY Errors. What would cause that error? The second time I ran it, it said configuration errors and it mentioned Latency too.

    Any thoughts you have are appreciated.


    Thanks, OooBuntuRox
    Last edited by OooBuntuRox; May 24th, 2012 at 01:58 PM. Reason: Update

  2. #32
    Join Date
    Feb 2008
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    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Poor wireless performance on ubuntu 11.10

    Hi, those dns settings are to google and it is usually a lot faster then our on IP DNS.

    As for the error here is a link.
    http://www.google.com/search?q=LATEN...ntu&channel=fs
    Thanks

  3. #33
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    Re: Poor wireless performance on ubuntu 11.10

    I am still getting slower speeds by about 1Gbps less with the BCM4311 . It may start out fine but then quickly drops. I am still searching for answers.

  4. #34
    Join Date
    Feb 2008
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    Ubuntu 12.04 Precise Pangolin

    Re: Poor wireless performance on ubuntu 11.10

    Hi, you can also set your router on channel 1 or 11 and see if that increases your link quality and speed.
    Thanks

  5. #35
    Join Date
    Dec 2005
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    Re: Poor wireless performance on ubuntu 11.10

    I just had to revert to using Ubuntu 10.10

    11.04,11.10,12.04 all are slow and none of the fixes i have tried work, hopefully 12.10 fixes the issue but I'm not holding my breath..so confusing as to why atheros worked perfectly fine from 10.10 on down

  6. #36
    Join Date
    Dec 2005
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    Re: Poor wireless performance on ubuntu 11.10

    Well i knock on wood but i think it's finally fixed,



    I'm was testing 12.10 and the same problem existed but on the bugs
    page they recommended testing kernel '3.6.0-030600rc5-generic' and so far it's been full speed without having to do all those other tricks.


    https://bugs.launchpad.net/ubuntu/+s...x/+bug/1046800

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