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Thread: Ubuntu 12.04 Slow Wireless

  1. #11
    Join Date
    Aug 2007
    Location
    Belding, MI, USA
    Beans
    42
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: Ubuntu 12.04 Slow Wireless

    Quote Originally Posted by skompier View Post
    Thanks, but I've already tried those solutions and none worked.

  2. #12
    Join Date
    Aug 2007
    Location
    Belding, MI, USA
    Beans
    42
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: Ubuntu 12.04 Slow Wireless

    Quote Originally Posted by wildmanne39 View Post
    Hi, leave that setting in and set your wireless setting to match the sreenshots.

    Also some people have had to change the speed of there connection in the router to just g speed I believe.
    Thanks
    Still no difference.

    It's a bummer, because I'd like to finally ditch Windows and use Ubuntu (especially when the Linux version of Steam comes out) but I don't wanna have to go back to a wired connection.

  3. #13
    Join Date
    Feb 2006
    Beans
    13

    Re: Ubuntu 12.04 Slow Wireless

    I'm having a similar issue with my Broadcom BCM4322 wifi adapter. I'm using an HP dv4 laptop with this particular wireless chipset, and I'm getting speeds at about .25Mbit/sec. It is ridiculously slow and I'm not quite sure what can be done to resolve it. Oddly enough, I've used different versions of Ubuntu, Windows and even FreeBSD on this laptop without these types of wireless issues.

  4. #14
    Join Date
    Apr 2012
    Beans
    1

    Re: Ubuntu 12.04 Slow Wireless

    Quote Originally Posted by wildmanne39 View Post
    Hi, please try:
    Code:
    sudo modprobe -r rtl8192cu
    
    sudo modprobe rtl8192cu swenc=1
    do not reboot, if it works we will need to make it permanent.
    Thanks
    I have the same problem, but the wireless connection is slow on other sites too (checked on speedtest.net and got only 0.9 MB/s when I usually get 3.5 MB/s in Windows and in 11.10)

    I run those two commands you suggested and the connection suddenly got great!
    How do I keep it permanent?

  5. #15
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    14,823
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Ubuntu 12.04 Slow Wireless

    Hi comet, have you changed your settings to match the screenshots in post 9? if so please start your own thread and post a link to it here because it gets confusing working on more then one persons issue while the OP's issue has not been resolved.
    Thanks

  6. #16
    Join Date
    Oct 2011
    Beans
    8

    Re: Ubuntu 12.04 Slow Wireless

    open terminal and type:
    sudo rmmod iwlwifi
    sudo modprobe iwlwifi 11n_disable=1

    if it works make it permanent by:
    opening/creating /etc/modprobe.d/options.conf and adding the following line
    options iwlwifi 11n_disable=1

    it resolved my issue. In my case in 11.10 the iwlwifi was defined as wilagn.

    it sucks as this issue was known in the previous release and did not get resolved out of the box. Shame on you Ubuntu. Anyway, hope it helps.

  7. #17
    Join Date
    Aug 2007
    Location
    Belding, MI, USA
    Beans
    42
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: Ubuntu 12.04 Slow Wireless

    Quote Originally Posted by KYSL View Post
    open terminal and type:
    sudo rmmod iwlwifi
    sudo modprobe iwlwifi 11n_disable=1

    if it works make it permanent by:
    opening/creating /etc/modprobe.d/options.conf and adding the following line
    options iwlwifi 11n_disable=1

    it resolved my issue. In my case in 11.10 the iwlwifi was defined as wilagn.

    it sucks as this issue was known in the previous release and did not get resolved out of the box. Shame on you Ubuntu. Anyway, hope it helps.
    Tried it... says ERROR: Module iwlwifi does not exist in /proc/modules

  8. #18
    Join Date
    Oct 2011
    Beans
    8

    Re: Ubuntu 12.04 Slow Wireless

    Quote Originally Posted by vDub2000 View Post
    Tried it... says ERROR: Module iwlwifi does not exist in /proc/modules
    please check the driver name from the "connection information" menu and match it to the above command.

  9. #19
    Join Date
    Aug 2007
    Location
    Belding, MI, USA
    Beans
    42
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: Ubuntu 12.04 Slow Wireless

    Quote Originally Posted by KYSL View Post
    please check the driver name from the "connection information" menu and match it to the above command.
    I ended up doing that too, except I got some sort of fatal error as I did so.

  10. #20
    Join Date
    Aug 2009
    Beans
    287

    Re: Ubuntu 12.04 Slow Wireless

    in 11.10 I had really slow internet connection when using wifi, but only at my home. I have broadcom 4431.


    It's ONLY broadcom that does these issues. Anyway, the conclusion is that my adapter is in conflict with my wireless router, as it does not do this slow connection bug when I am at campus or a cafe, for instance.

    For a good connection I had to re-connect to the wireless network, but then it slowed down again after a while.

    The issue is resolved for me in 12.04. Don't ask me why. But I still have a very slow download when using torrents when it is working fast if I do it on Windows.

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