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Thread: [12.04]Asus N13 (rev B1) Connecting to AP, but intermittent connectivity to internet

  1. #1
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    [12.04]Asus N13 (rev B1) Connecting to AP, but intermittent connectivity to internet

    I have a Asus N13 rev B1 usb wireless card which uses the rtl8192cu driver in Ubuntu 12.04.

    Currently, 12.04 is able to correctly assign the driver to the card when it is plugged in. It shows up in network manage and I can connect to my wireless router just fine. However, pinging anything (including my router) does not work or works with heavy (90%) packet loss.

    I've attempted to reinstall the driver using a version from the Realtek website, but it only seems to support kernel 3.0x.

    I was wondering if anyone knows of a way to either install the realtek driver or fix the default one.
    Thanks for any input

    lsusb
    Code:
    sid@Sid-Nix:~$ lsusb 
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 004 Device 002: ID 125f:312b A-DATA Technology Co., Ltd. 
    Bus 001 Device 003: ID 046d:c223 Logitech, Inc. G11/G15 Keyboard / USB Hub
    Bus 002 Device 006: ID 0b05:17ab ASUSTek Computer, Inc. 
    Bus 001 Device 004: ID 046d:c221 Logitech, Inc. G11/G15 Keyboard / Keyboard
    Bus 001 Device 005: ID 046d:c042 Logitech, Inc. G3 Laser Mouse
    Bus 001 Device 006: ID 046d:c222 Logitech, Inc. G15 Keyboard / LCD
    lsmod | grep rtl
    Code:
    sid@Sid-Nix:~$ lsmod | grep rtl
    rtl8192cu             103297  0 
    rtl8192c_common        75767  1 rtl8192cu
    rtlwifi               111202  1 rtl8192cu
    mac80211              506816  3 rtl8192cu,rtl8192c_common,rtlwifi
    cfg80211              205544  2 rtlwifi,mac80211
    dmesg | grep 8192
    Code:
    [ 7496.232851] rtl8192cu: MAC address: c8:60:00:d3:81:3f
    [ 7496.232855] rtl8192cu: Board Type 0
    [ 7496.259690] rtl8192cu: MAC auto ON okay!
    [ 7496.292531] rtl8192cu: Tx queue select: 0x05
    [ 7496.293163] rtl8192c_common: Loading firmware file rtlwifi/rtl8192cufw.bin
    Additional Info:
    I've tried the device in windows and get a great connection so that rules out hardware.
    Also, I've tried the device in the 12.10 Alpha with the 3.5x kernel with the same issues.
    Attempts at installing the realtek driver stop in an error which I can retrieve if its needed.
    I'm also following the outcome of this thread among others: http://ubuntuforums.org/showthread.p...871&highlight=

    The drivers on the Asus site seem to support an older hardware revision which used the RT2870 chipset if I understand this correctly.
    Last edited by Sir_Sid; July 25th, 2012 at 08:10 AM. Reason: More Info

  2. #2
    Join Date
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    Ubuntu 17.10 Artful Aardvark

    Re: [12.04]Asus N13 (rev B1) Connecting to AP, but intermittent connectivity to inter

    The drivers on the Asus site seem to support an older hardware revision which used the RT2870 chipset if I understand this correctly.
    Correct. Your device here is not the Ralink; it is the Realtek.
    0b05:17ab ASUSTek Computer, Inc.
    Let's make sure there are no conflicting drivers installed:
    Code:
    lsmod | grep rt
    Let's see if there are any clues in the message logs:
    Code:
    dmesg | grep -e rtl -e wlan
    Let's also try a driver parameter:
    Code:
    sudo modprobe -r rtl8192cu
    sudo modprobe rtl8192cu swenc=1
    We can write a conf file and make it permanent if it helps.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #3
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    Re: [12.04]Asus N13 (rev B1) Connecting to AP, but intermittent connectivity to inter

    lsmod | grep rt
    Code:
    parport_pc             32866  0 
    rtl8192cu             103297  0 
    rtl8192c_common        75767  1 rtl8192cu
    rtlwifi               111202  1 rtl8192cu
    mac80211              506816  3 rtl8192cu,rtl8192c_common,rtlwifi
    cfg80211              205544  2 rtlwifi,mac80211
    parport                46562  3 parport_pc,ppdev,lp
    I rebooted recently so dmesg is relatively clean. Currently, the card is connected to an AP, but I still am unable to ping out.

    Code:
    [    2.950187] rtl8192cu: MAC address: c8:60:00:d3:81:3f
    [    2.950191] rtl8192cu: Board Type 0
    [    2.983288] rtlwifi: rx_max_size 15360, rx_urb_num 8, in_ep 1
    [    3.011083] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
    [    3.011356] usbcore: registered new interface driver rtl8192cu
    [    8.791736] rtl8192cu: MAC auto ON okay!
    [    8.827921] rtl8192cu: Tx queue select: 0x05
    [    8.828667] rtl8192c_common: Loading firmware file rtlwifi/rtl8192cufw.bin
    [    9.225417] ADDRCONF(NETDEV_UP): wlan0: link is not ready
    [    9.226023] ADDRCONF(NETDEV_UP): wlan0: link is not ready
    [   11.547942] wlan0: authenticate with 54:04:a6:d3:46:6a (try 1)
    [   11.552992] wlan0: authenticated
    [   11.582899] wlan0: associate with 54:04:a6:d3:46:6a (try 1)
    [   11.587542] wlan0: RX AssocResp from 54:04:a6:d3:46:6a (capab=0xc11 status=0 aid=4)
    [   11.587545] wlan0: associated
    [   11.605514] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [   22.457077] wlan0: no IPv6 routers present
    I mounted the device with parameter swenc=1 and pings started to work again. However, when I tried this earlier in my troubleshooting the network dropped out within the hour. Ill update this if that reoccurs.

    Packet loss started to occur again
    Code:
    --- www.l.google.com ping statistics ---
    24 packets transmitted, 9 received, 62% packet loss, time 23090ms
    rtt min/avg/max/mdev = 50.234/60.093/112.043/18.477 ms
    swenc=1 has improved things, but the networks drops out in bursts. The card remains connected to the AP though.
    Code:
    wlan0     IEEE 802.11bgn  ESSID:"XXXX"  
              Mode:Managed  Frequency:2.432 GHz  Access Point: 54:04:A6:D3:46:6B   
              Bit Rate=72.2 Mb/s   Tx-Power=20 dBm   
              Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
              Power Management:off
              Link Quality=70/70  Signal level=-40 dBm  
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:0  Invalid misc:6   Missed beacon:0
    My laptop is able to ping just fine from my current location so I believe this is isolated to the card.
    Last edited by Sir_Sid; July 25th, 2012 at 04:58 PM. Reason: more info

  4. #4
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    Re: [12.04]Asus N13 (rev B1) Connecting to AP, but intermittent connectivity to inter

    I'm a complete newb on linux with that being said I have an Asus N13 that will keep attempting and attempting to connect to my little ATT 2wire modem. I downloaded the driver from ASUS on their website but I don't really know what to do with it.

  5. #5
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    Re: [12.04]Asus N13 (rev B1) Connecting to AP, but intermittent connectivity to inter

    First, let's verify which of the two versions you have. Please open a terminal and run and post:
    Code:
    lsusb
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  6. #6
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    Re: [12.04]Asus N13 (rev B1) Connecting to AP, but intermittent connectivity to inter

    norma@Norma:~$ lsusb
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 001 Device 004: ID 0b05:1784 ASUSTek Computer, Inc. USB-N13 802.11n Network Adapter [Ralink RT3072]

  7. #7
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    Re: [12.04]Asus N13 (rev B1) Connecting to AP, but intermittent connectivity to inter

    0b05:1784 ASUSTek Computer, Inc. USB-N13 802.11n Network Adapter [Ralink RT3072]
    This version is the Ralink chipset using the driver rt2800usb. First, let's see if we can change a driver parameter and make it work better. Please do:
    Code:
    sudo modprobe -r rt2800usb
    sudo modprobe rt2800usb nohwcrypt=Y
    If it works, we'll write a quick file and make it permanent.

    Also, be sure encryption in your 2wire is set to WPA2 only, not mixed mode WPA and WPA2. Please see attached. You do NOT want WPA and WPA2-PSK; you want WPA2-PSK.
    Attached Images Attached Images
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  8. #8
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    Re: [12.04]Asus N13 (rev B1) Connecting to AP, but intermittent connectivity to inter

    I changed the setting on my modem. I must be doing something wrong with the sudo commands. I tried sudo with no password and it said wrong password I tried it with my user password and it didn't say anything.


    norma@Norma:~$ sudo modprobe -r rt2800usb
    [sudo] password for norma:
    Sorry, try again.
    [sudo] password for norma:
    norma@Norma:~$ sudo modprobe -r rt2800usb
    norma@Norma:~$ sudo modprobe rt2800usb nohwcrypt=Y

    Nothing really happened.

  9. #9
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    Re: [12.04]Asus N13 (rev B1) Connecting to AP, but intermittent connectivity to inter

    I tried it with my user password and it didn't say anything.
    Most commands in Linux are accepted with no confirmation if there are no warnings or errors to report. It was accepted just perfectly from the look of things.

    You might try this package; there is an updated rt2800usb included there:
    Code:
    sudo apt-get install linux-backports-modules-cw-3.3-precise-generic
    Reboot and tell us if you are able to connect.

    Off for the evening; I'll check back tomorrow.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  10. #10
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    Re: [12.04]Asus N13 (rev B1) Connecting to AP, but intermittent connectivity to inter

    It still does the same thing it did before. It keeps asking for the network password over and over again.

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