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Thread: Intermittent disconnection of rtl8187 in ubuntu 12.04 64bit

  1. #1
    Join Date
    Jul 2005
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    31

    Intermittent disconnection of rtl8187 in ubuntu 12.04 64bit

    Hi, I recently switched from linuxmint debian edition to ubuntu 12.04 and I am experimenting wireless intermittent disconnections.

    The amount of time that passes before getting disconnected is very random: sometimes it takes 3-4 hours, sometimes it takes 15-20 minutes, etc.

    I was able to look at /var/log/syslog and the following is part of the output of the exact time when the connection drops:

    Feb 21 14:45:17 msibox kernel: [28921.840952] rtl8187: wireless radio switch turned off
    Feb 21 14:45:17 msibox kernel: [28921.939953] wlan0: deauthenticating from c9:3b:34:48:a5:f0 by local choice (reason=3)
    Feb 21 14:45:18 msibox kernel: [28922.424501] cfg80211: All devices are disconnected, going to restore regulatory settings
    Feb 21 14:45:18 msibox kernel: [28922.424508] cfg80211: Restoring regulatory settings
    Feb 21 14:45:18 msibox kernel: [28922.424525] cfg80211: Calling CRDA to update world regulatory domain
    Feb 21 14:45:19 msibox kernel: [28923.514600] cfg80211: Updating information on frequency 2412 MHz for a 20 MHz width channel with regulatory rule:
    Feb 21 14:45:19 msibox kernel: [28923.514605] cfg80211: 2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
    ... (long output)

    Is there something I can do for avoiding these intermittent disconnections?

    I would really appreciate any help on this issue.

    Thanks in advance.

    PS: I never had this problem in linuxmint.

  2. #2
    Join Date
    Aug 2013
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    2

    Re: Intermittent disconnection of rtl8187 in ubuntu 12.04 64bit

    I am experiencing the same issues on Lubuntu x64. Did you find a solution?

  3. #3
    Join Date
    Jul 2005
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    31

    Re: Intermittent disconnection of rtl8187 in ubuntu 12.04 64bit

    Hi arthurborsboom2. Unfortunately, I wasn't able to solve the problem. I recall trying everything I found in this and other forums, but the problem persisted. I even installed the linux-wireless driver for my usb dongle and I experienced the same.
    Since I didn't plan to spend more money buying a usb dongle of another brand (with the probability to experience the same issue) I ended up with a wired connection between my router and the computer.

    If you get to solve it, please let me know. I am also dying to know if there is a solution for this problem

  4. #4
    Join Date
    Mar 2010
    Location
    India
    Beans
    7,671
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Intermittent disconnection of rtl8187 in ubuntu 12.04 64bit

    Quote Originally Posted by arthurborsboom2 View Post
    I am experiencing the same issues on Lubuntu x64. Did you find a solution?
    Welcome to the Forums arthurborsboom2 !

    Are you sure you are using the same driver? You can confirm that with the output of command -
    Code:
    lspci -nnk | grep -iA2 net
    If yours is a different card/driver, please start your own thread and post your question with details of the problem.

    @rolandpish,
    Did you also try the proprietary driver from realtek?

    It may help if we can get more info about your wireless setup. You may generate a detailed diagnostics report by running "wireless_script" (courtesy Wild Man) which you can find in the "Wireless Script" link in my signature.
    Varun
    Help others by marking threads as [SOLVED], if they are. (See how)
    Wireless Script | Use Code Tags

  5. #5
    Join Date
    Jul 2005
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    31

    Re: Intermittent disconnection of rtl8187 in ubuntu 12.04 64bit

    Quote Originally Posted by varunendra View Post

    @rolandpish,
    Did you also try the proprietary driver from realtek?

    It may help if we can get more info about your wireless setup. You may generate a detailed diagnostics report by running "wireless_script" (courtesy Wild Man) which you can find in the "Wireless Script" link in my signature.
    Yes, I also tried with the proprietary driver from realtek and it seemed to work a bit better but I still experienced intermittent disconnection.
    Once I get home I will download the Wireless Script and post the diagnostics here.

    Thanks a lot!

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