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Thread: Edimax EW-7711USn USB Wireless Driver Problem

  1. #1
    Join Date
    Jun 2012
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    Edimax EW-7711USn USB Wireless Driver Problem

    Hi
    I m new to Ubuntu, Linux and this Forum
    I just install Ubuntu 10.04 with Wubi. Everything work nice but my USB Wireless Adaptor.
    http://www.edimax.com/en/support_det...=303&button=Go

    I have downloaded driver from;
    http://www.ralinktech.com/en/04_supp...ort.php?sn=501
    and follow the README file but when it comes "/sbin/insmod rt2870sta.ko" throws "insmod: error inserting 'rt2870sta.ko': -1 File exists" error


    This is my iwconfig;
    lo no wireless extensions.

    eth0 no wireless extensions.

    wlan0 IEEE 802.11bgn ESSIDff/any
    Mode:Managed Access Point: Not-Associated Tx-Power=19 dBm
    Retry long limit:7 RTS thrff Fragment thrff
    Encryption keyff
    Power Managementn


    And lsmod

    rt2800usb 33496 0
    rt2x00usb 11164 1 rt2800usb
    rt2x00lib 32165 2 rt2800usb,rt2x00usb
    led_class 3764 1 rt2x00lib
    mac80211 238928 2 rt2x00usb,rt2x00lib
    cfg80211 148725 2 rt2x00lib,mac80211
    crc_ccitt 1675 1 rt2800usb
    rt2870sta 626667 0

    I m using my ethernet card to connect but wireless adapter would be nice and tidy cable mass. What is wrong with this, any help? Thanks

  2. #2
    Join Date
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    Ubuntu 12.04 Precise Pangolin

    Re: Edimax EW-7711USn USB Wireless Driver Problem

    Hi, welcome to the forum! Please open a terminal ctrl+alt+t copy and paste the following commands into it one line at a time, then paste the results here:

    Code:
    cat /etc/lsb-release; uname -a
    lspci -nnk | grep -iA2 net
    lsusb
    iwconfig
    rfkill list all
    lsmod
    by clicking on new reply and click # then paste the information between the brackets.
    Thank you

  3. #3
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    Re: Edimax EW-7711USn USB Wireless Driver Problem

    I think my buddy the Wild Man would like you to add another step:
    Code:
    sudo su
    echo "blacklist rt2800usb" >> /etc/modprobe.d/blacklist.conf
    exit
    Reboot with the ethernet detached and give us your report.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  4. #4
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    Re: Edimax EW-7711USn USB Wireless Driver Problem

    Thanks for your interest, after blacklist rt2800usb, disconnect usb adapter and reboot. All i get is this. And "rfkill list all" returns nothing.
    Code:
    root@ubuntu:/home/erdi# cat /etc/lsb-release; uname -a
    DISTRIB_ID=Ubuntu
    DISTRIB_RELEASE=10.04
    DISTRIB_CODENAME=lucid
    DISTRIB_DESCRIPTION="Ubuntu 10.04.4 LTS"
    Linux ubuntu 2.6.32-41-generic #90-Ubuntu SMP Tue May 22 11:29:51 UTC 2012 x86_64 GNU/Linux
    Code:
    root@ubuntu:/home/erdi# lspci -nnk | grep -iA2 net
    03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 02)
        Kernel driver in use: r8169
        Kernel modules: r8169
    root@ubuntu:/home/erdi# lsusb
    Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 004 Device 002: ID 1d57:ac01  
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 003 Device 002: ID 046e:52cc Behavior Tech. Computer Corp. 
    Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 001 Device 004: ID 0424:2228 Standard Microsystems Corp. 9-in-2 Card Reader
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Code:
    root@ubuntu:/home/erdi# iwconfig
    lo        no wireless extensions.
    
    eth0      no wireless extensions.
    Code:
    root@ubuntu:/home/erdi# lsmod
    Module                  Size  Used by
    binfmt_misc             7960  1 
    snd_hda_codec_atihdmi     3023  1 
    joydev                 11104  0 
    snd_hda_codec_realtek   279104  1 
    snd_hda_intel          25805  2 
    snd_hda_codec          85791  3 snd_hda_codec_atihdmi,snd_hda_codec_realtek,snd_hda_intel
    snd_hwdep               6924  1 snd_hda_codec
    snd_pcm_oss            41394  0 
    snd_mixer_oss          16299  1 snd_pcm_oss
    snd_pcm                87946  3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
    snd_seq_dummy           1782  0 
    snd_seq_oss            31191  0 
    snd_seq_midi            5829  0 
    snd_rawmidi            23420  1 snd_seq_midi
    snd_seq_midi_event      7267  2 snd_seq_oss,snd_seq_midi
    snd_seq                57481  6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
    ppdev                   6375  0 
    snd_timer              23681  2 snd_pcm,snd_seq
    snd_seq_device          6888  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
    parport_pc             29958  1 
    fbcon                  39270  71 
    tileblit                2487  1 fbcon
    font                    8053  1 fbcon
    bitblit                 5811  1 fbcon
    usbhid                 41116  0 
    softcursor              1565  1 bitblit
    hid                    83888  1 usbhid
    fglrx                2353486  31 
    psmouse                65040  0 
    serio_raw               4918  0 
    snd                    71283  16 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
    vga16fb                12757  1 
    vgastate                9857  1 vga16fb
    soundcore               8052  1 snd
    snd_page_alloc          8500  2 snd_hda_intel,snd_pcm
    intel_agp              29319  0 
    lp                      9336  0 
    parport                37160  3 ppdev,parport_pc,lp
    usb_storage            50633  0 
    r8169                  39714  0 
    mii                     5237  1 r8169
    Thanks again

  5. #5
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    Re: Edimax EW-7711USn USB Wireless Driver Problem

    Previously, you had rt2800usb AND rt2870sta loaded. They conflict. The usual fix is to blacklist rt2800usb and let rt2870sta do the work. Now, even rt2870sta is missing. Let's load it explicitly:
    Code:
    sudo modprobe rt2870sta
    Does that help?
    Code:
    iwconfig
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  6. #6
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    Re: Edimax EW-7711USn USB Wireless Driver Problem

    Hi, chili555 is correct,
    I think my buddy the Wild Man would like you to add another step:
    I did suspect that as well, it has been a long time since I have seen this card with 10.04 so I just wanted to double check.
    Thanks

  7. #7
    Join Date
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    Re: Edimax EW-7711USn USB Wireless Driver Problem

    Now i can scan networks around me but cant connect. its trying about 1 - 2 mins and ask pass again. Double check pass and i can connect with my phone to wireless network. This iwconfig while its trying to connect
    Code:
    root@ubuntu:/home/erdi# iwconfig
    lo        no wireless extensions.
    
    eth0      no wireless extensions.
    
    wlan0     RTxx70 Wireless  ESSID:"AirTies_Air4340"  Nickname:"RT3070STA"
              Mode:Managed  Frequency=2.437 GHz  Access Point: 18:28:61:02:E5:98   
              Bit Rate=54 Mb/s   
              RTS thr:off   Fragment thr:off
              Encryption key:off
              Link Quality=100/100  Signal level:-31 dBm  Noise level:-83 dBm
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:0  Invalid misc:0   Missed beacon:0

  8. #8
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    Re: Edimax EW-7711USn USB Wireless Driver Problem

    Hi, please post the output of:
    Code:
    nm-tool
    sudo iwlist scan
    lsmod | grep rt2
    dmesg | egrep 'rt2|wlan|wpa|etork'
    EDIT: You can not be connected to the internet through this computer with your wired connection or phone to be able to connect with your wireless so please disconnect all other connections before trying to connect with your usb adapter and before running the above commands.
    Thanks
    Last edited by Wild Man; June 22nd, 2012 at 05:21 PM.

  9. #9
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    Re: Edimax EW-7711USn USB Wireless Driver Problem

    Im trying to connect ESSID:"AirTies_Air4340"
    Code:
    root@ubuntu:/home/erdi# nm-tool
    
    NetworkManager Tool
    
    State: connected
    
    - Device: eth0  [Auto eth0] ----------------------------------------------------
      Type:              Wired
      Driver:            r8169
      State:             connected
      Default:           yes
      HW Address:        00:21:85:5B:76:DB
    
      Capabilities:
        Carrier Detect:  yes
        Speed:           100 Mb/s
    
      Wired Properties
        Carrier:         on
    
      IPv4 Settings:
        Address:         192.168.2.92
        Prefix:          24 (255.255.255.0)
        Gateway:         192.168.2.1
    
        DNS:             208.67.222.222
        DNS:             208.67.220.220
    
    
    - Device: wlan0  [Auto AirTies_Air4340] ----------------------------------------
      Type:              802.11 WiFi
      Driver:            usb
      State:             connecting (configuring)
      Default:           no
      HW Address:        00:1F:1F:E3:3B:9F
    
      Capabilities:
    
      Wireless Properties
        WEP Encryption:  yes
        WPA Encryption:  yes
        WPA2 Encryption: yes
    
      Wireless Access Points 
        AirTies_Air4340: Infra, 18:28:61:02:E5:98, Freq 2437 MHz, Rate 54 Mb/s, Strength 100 WPA WPA2
        ARI:             Infra, D0:15:4A:02:57:6A, Freq 2437 MHz, Rate 54 Mb/s, Strength 2 WPA
        RT-204_e_n:      Infra, 00:1C:A8:0A:82:88, Freq 2412 MHz, Rate 54 Mb/s, Strength 18 WPA WPA2
        selma:           Infra, 00:1A:2B:92:24:76, Freq 2412 MHz, Rate 54 Mb/s, Strength 23 WPA
        USR9114:         Infra, 00:14:C1:3A:4E:8D, Freq 2462 MHz, Rate 54 Mb/s, Strength 7 WPA WPA2
        Babil_Film:      Infra, 00:1A:2A:87:82:70, Freq 2462 MHz, Rate 22 Mb/s, Strength 2 WPA
        Felicita Garden 1: Infra, 74:EA:3A:EC:87:7B, Freq 2437 MHz, Rate 36 Mb/s, Strength 7 WPA WPA2
        KARNAD:          Infra, 00:1A:2A:85:27:37, Freq 2462 MHz, Rate 22 Mb/s, Strength 31 WPA WPA2
    Code:
    
    root@ubuntu:/home/erdi# iwlist scan
    lo        Interface doesn't support scanning.
    
    eth0      Interface doesn't support scanning.
    
    wlan0     Scan completed :
              Cell 01 - Address: 00:1A:2B:92:24:76
                        Protocol:802.11b/g
                        ESSID:"selma"
                        Mode:Managed
                        Channel:1
                        Quality:26/100  Signal level:-79 dBm  Noise level:-97 dBm
                        Encryption key:on
                        Bit Rates:54 Mb/s
                        IE: WPA Version 1
                            Group Cipher : CCMP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
              Cell 02 - Address: 18:28:61:02:E5:98
                        Protocol:802.11b/g/n
                        ESSID:"AirTies_Air4340"
                        Mode:Managed
                        Channel:6
                        Quality:100/100  Signal level:-27 dBm  Noise level:-97 dBm
                        Encryption key:on
                        Bit Rates:54 Mb/s
                        IE: WPA Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : CCMP TKIP
                            Authentication Suites (1) : PSK
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : CCMP TKIP
                            Authentication Suites (1) : PSK
              Cell 03 - Address: 00:1A:2A:85:27:37
                        Protocol:802.11b/g
                        ESSID:"KARNAD"
                        Mode:Managed
                        Channel:11
                        Quality:26/100  Signal level:-79 dBm  Noise level:-97 dBm
                        Encryption key:on
                        Bit Rates:22 Mb/s
                        IE: WPA Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (1) : TKIP
                            Authentication Suites (1) : PSK
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
              Cell 04 - Address: 00:1A:2A:2E:6D:AE
                        Protocol:802.11b/g
                        ESSID:"ei"
                        Mode:Managed
                        Channel:11
                        Quality:13/100  Signal level:-85 dBm  Noise level:-97 dBm
                        Encryption key:off
                        Bit Rates:22 Mb/s
    Code:
    root@ubuntu:/home/erdi# lsmod | grep rt2
    rt2870sta             525366  1
    Code:
    root@ubuntu:/home/erdi# dmesg | egrep 'rt2|wlan|wpa|etork'
    [    9.379139] rt2870sta: module is from the staging directory, the quality is unknown, you have been warned.
    [    9.384091] usbcore: registered new interface driver rt2870
    [   22.032510] wlan0: no IPv6 routers present

  10. #10
    Join Date
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    Re: Edimax EW-7711USn USB Wireless Driver Problem

    Hi, unplug your wired connection then see if it will connect, I also recommend changing the encryption in your router to just wpa2.

    I believe you may be having issues because of the _ in your network name remove it in the router and network manager then reboot and see if it connects.

    EDIT: After you do all of that if it does not connect post the output of:
    Code:
    sudo cat /var/log/syslog | grep wlan | tail -n45
    Thanks
    Last edited by Wild Man; June 22nd, 2012 at 05:39 PM.

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