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Thread: Wireless issues with an Asus N76VZ / Ubuntu 12.04/Kernel 3.4/Intel Wireless-N 2230

  1. #1
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    Wireless issues with an Asus N76VZ / Ubuntu 12.04/Kernel 3.4/Intel Wireless-N 2230

    Hi everyone, fairly new to Linux. I've installed Ubuntu 12.04 on my Asus N76VZ, and I'm having issues with the wireless connection dropping every few minutes. I can disconnect and reconnect and it will then work again.

    I've already tried disabling IPV6, but that doesn't seem to do anything for me.

    From: -lspci
    Network controller: Intel Corporation Centrino Wireless-N 2230 (rev c4)

    From: -ifconfig
    lo Link encap:Local Loopback
    inet addr:127.0.0.1 Mask:255.0.0.0
    UP LOOPBACK RUNNING MTU:16436 Metric:1
    RX packets:5791 errors:0 dropped:0 overruns:0 frame:0
    TX packets:5791 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:558665 (558.6 KB) TX bytes:558665 (558.6 KB)

    wlan0 Link encap:Ethernet HWaddr 68:5d:43:74:0f:09
    inet addr:192.168.1.36 Bcast:192.168.1.255 Mask:255.255.255.0
    UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
    RX packets:136930 errors:0 dropped:0 overruns:0 frame:0
    TX packets:85434 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:175053810 (175.0 MB) TX bytes:11473651 (11.4 MB)

    From -iwconfig wlan0
    wlan0 IEEE 802.11bgn ESSID:"SINGTEL-2042"
    Mode:Managed Frequency:2.462 GHz Access Point: 98:2C:BE:EDB:B2
    Bit Rate=6 Mb/s Tx-Power=0 dBm
    Retry long limit:7 RTS thrff Fragment thrff
    Power Managementff
    Link Quality=41/70 Signal level=-69 dBm
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:3741 Invalid misc:457 Missed beacon:0

    And from: sudo lshw -C network
    *-network
    description: Wireless interface
    product: Centrino Wireless-N 2230
    vendor: Intel Corporation
    physical id: 0
    bus info: pci@0000:03:00.0
    logical name: wlan0
    version: c4
    serial: 68:5d:43:74:0f:09
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
    configuration: broadcast=yes driver=iwlwifi driverversion=3.4.0-030400-generic firmware=18.168.6.1 ip=192.168.1.36 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
    resources: irq:45 memory:f7900000-f7901fff
    *-network UNCLAIMED
    description: Ethernet controller
    product: AR8161 Gigabit Ethernet
    vendor: Atheros Communications Inc.
    physical id: 0
    bus info: pci@0000:04:00.0
    version: 08
    width: 64 bits
    clock: 33MHz
    capabilities: pm pciexpress msi msix bus_master cap_list
    configuration: latency=0
    resources: memory:f7800000-f783ffff ioport:d000(size=128)

  2. #2
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    Re: Wireless issues with an Asus N76VZ / Ubuntu 12.04/Kernel 3.4/Intel Wireless-N 223

    Let's try a driver parameter. Please do:
    Code:
    sudo modprobe -r iwlwifi
    sudo modprobe iwlwifi 11n_disable=1
    If it helps, we'll write one quick file and make it persistent.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #3
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    Re: Wireless issues with an Asus N76VZ / Ubuntu 12.04/Kernel 3.4/Intel Wireless-N 223

    This seems to have helped! How do I make that permanent?

  4. #4
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    Re: Wireless issues with an Asus N76VZ / Ubuntu 12.04/Kernel 3.4/Intel Wireless-N 223

    Quote Originally Posted by blinduck View Post
    This seems to have helped! How do I make that permanent?
    Please do:
    Code:
    sudo gedit /etc/modprobe.d/iwlwifi.conf
    A new, empty file will open. Use kate or leafpad or any text editor if you don't have gedit. Add a single line:
    Code:
    options iwlwifi 11n_disable=1
    Proofread, save and close the text editor. You should be all set.

    So the searchers can find the answer, please use thread tools at the top to mark Solved.

    Have fun!
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  5. #5
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    Re: Wireless issues with an Asus N76VZ / Ubuntu 12.04/Kernel 3.4/Intel Wireless-N 223

    Ok scratch that, nope it doesn't seem to work. Connection still drops frequently. Seems to be a random thing, doesn't follow any pattern..

    Any other suggestions?

  6. #6
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    Re: Wireless issues with an Asus N76VZ / Ubuntu 12.04/Kernel 3.4/Intel Wireless-N 223

    You might try a different parameter:
    Code:
    sudo gedit /etc/modprobe.d/iwlwifi.conf
    Change the contents to:
    Code:
    options iwlwifi 11n_disable=1 bt_coex_active=N
    Proofread, save and close the text editor. Reboot and let us have your report.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  7. #7
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    Re: Wireless issues with an Asus N76VZ / Ubuntu 12.04/Kernel 3.4/Intel Wireless-N 223

    I also just bought an Asus N76VZ V2G today.
    Have had it for only 4 hours, and already have the same problem with the wireless network...
    REALLY anoying... And I've tried to disable it in the powersafe mode, but nothing makes a difference...
    I would give anything for a solution, since the computer is sooooo nice in every other way. But this is kind of important to get fixed... Seems like it might be a problem with this specifik model. But it's gotta be possible to solve it somehow, right ?

  8. #8
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    Re: Wireless issues with an Asus N76VZ / Ubuntu 12.04/Kernel 3.4/Intel Wireless-N 223

    Quote Originally Posted by Asus User View Post
    I also just bought an Asus N76VZ V2G today.
    Have had it for only 4 hours, and already have the same problem with the wireless network...
    REALLY anoying... And I've tried to disable it in the powersafe mode, but nothing makes a difference...
    I would give anything for a solution, since the computer is sooooo nice in every other way. But this is kind of important to get fixed... Seems like it might be a problem with this specifik model. But it's gotta be possible to solve it somehow, right ?
    What is your experience after the solution I proposed above?
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  9. #9
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    Re: Wireless issues with an Asus N76VZ / Ubuntu 12.04/Kernel 3.4/Intel Wireless-N 223

    I havn't tried your solution yet.
    I've ready that Intel in generel have major problems with many of their network cards.

    I assume that is the same problem in this case.
    My network card is an Intel Centrino Wireless-N 2230.

    Therefore I will try to look for some driver updates.

    If that doesn't work, I might give your solution a try

  10. #10
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    Re: Wireless issues with an Asus N76VZ / Ubuntu 12.04/Kernel 3.4/Intel Wireless-N 223

    Quote Originally Posted by chili555 View Post
    You might try a different parameter:
    Code:
    sudo gedit /etc/modprobe.d/iwlwifi.conf
    Change the contents to:
    Code:
    options iwlwifi 11n_disable=1 bt_coex_active=N
    Proofread, save and close the text editor. Reboot and let us have your report.
    Hmm nope, that isn't working either. Connection still dropping really often.

    @Asus User: If you manage to make it work, please post your solution here as well! This problem is making it really hard for me to work with ubuntu.
    Last edited by blinduck; September 5th, 2012 at 04:52 AM.

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