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Thread: TP LINK TL-WN727N question

  1. #1
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    TP LINK TL-WN727N question

    So the usb adapter works out of the box, for the most part. It says the reception is horrible, 1 bar. It seems to drop connection randomly. ( i was pulling fills from my nas and it would constantly drop and i would have to go back and pull those files again.)

    So my question is if i went through the hassle of installing the RT5372 drivers would it even fix the issue and would i have to recompile the drivers after every kernel update?
    Dell Inspiron 15R 5521 Ubuntu 13.04
    ************************
    AMD Phenom II x4 945***8GB DDR3 1333***Nvidia GeForce GT 440***Ubuntu 12.10

  2. #2
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    Re: TP LINK TL-WN727N question

    Please check:
    Code:
    uname -a
    lsusb
    lsmod
    iwconfig
    sudo iwlist scan

  3. #3
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    Re: TP LINK TL-WN727N question

    Code:
    chris@chris-pc:~$ uname -a
    Linux chris-pc 3.8.0-26-generic #38-Ubuntu SMP Mon Jun 17 21:43:33 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
    chris@chris-pc:~$ lsusb
    Bus 002 Device 002: ID 148f:5370 Ralink Technology, Corp. RT5370 Wireless Adapter
    Bus 003 Device 002: ID 1532:0016 Razer USA, Ltd DeathAdder Mouse
    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:0001 Linux Foundation 1.1 root hub
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    chris@chris-pc:~$ lsmod
    Module                  Size  Used by
    usb_storage            57204  0 
    bnep                   18036  2 
    rfcomm                 42641  0 
    bluetooth             228619  10 bnep,rfcomm
    arc4                   12615  2 
    nvidia               9410995  48 
    rt2800usb              26854  0 
    rt2x00usb              20635  1 rt2800usb
    rt2800lib              66507  1 rt2800usb
    rt2x00lib              54869  3 rt2x00usb,rt2800lib,rt2800usb
    mac80211              606457  3 rt2x00lib,rt2x00usb,rt2800lib
    snd_hda_codec_hdmi     36913  4 
    cfg80211              510937  2 mac80211,rt2x00lib
    crc_ccitt              12707  1 rt2800lib
    sp5100_tco             13735  0 
    snd_hda_codec_realtek    78399  1 
    snd_hda_intel          39619  7 
    snd_hda_codec         136453  3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
    snd_hwdep              13602  1 snd_hda_codec
    snd_pcm                97451  4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
    snd_page_alloc         18710  2 snd_pcm,snd_hda_intel
    snd_seq_midi           13324  0 
    snd_seq_midi_event     14899  1 snd_seq_midi
    snd_rawmidi            30180  1 snd_seq_midi
    snd_seq                61554  2 snd_seq_midi_event,snd_seq_midi
    snd_seq_device         14497  3 snd_seq,snd_rawmidi,snd_seq_midi
    snd_timer              29425  2 snd_pcm,snd_seq
    kvm_amd                59717  0 
    kvm                   443165  1 kvm_amd
    snd                    68876  23 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device
    soundcore              12680  1 snd
    wmi                    19070  0 
    i2c_piix4              13266  0 
    edac_core              62003  0 
    microcode              22881  0 
    serio_raw              13215  0 
    edac_mce_amd           23114  0 
    k10temp                13126  0 
    mac_hid                13205  0 
    ppdev                  17073  0 
    parport_pc             28152  1 
    lp                     17759  0 
    parport                46345  3 lp,ppdev,parport_pc
    hid_generic            12540  0 
    usbhid                 47074  0 
    hid                   101002  2 hid_generic,usbhid
    firewire_ohci          40103  0 
    firewire_core          64508  1 firewire_ohci
    r8169                  67446  0 
    crc_itu_t              12707  1 firewire_core
    pata_acpi              13038  0 
    ahci                   25731  3 
    libahci                31364  1 ahci
    pata_atiixp            13242  0 
    chris@chris-pc:~$ iwconfig
    tun0      no wireless extensions.
    
    eth0      no wireless extensions.
    
    lo        no wireless extensions.
    
    wlan0     IEEE 802.11bgn  ESSID:"NAS1_2GEXT"  
              Mode:Managed  Frequency:2.412 GHz  Access Point: 2C:B0:5D:3A:2D:09   
              Bit Rate=65 Mb/s   Tx-Power=20 dBm   
              Retry  long limit:7   RTS thr:off   Fragment thr:off
              Power Management:on
              Link Quality=45/70  Signal level=-65 dBm  
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:818  Invalid misc:234   Missed beacon:0
    
    chris@chris-pc:~$ sudo iwlist scan
    [sudo] password for chris: 
    tun0      Interface doesn't support scanning.
    
    eth0      Interface doesn't support scanning.
    
    lo        Interface doesn't support scanning.
    
    wlan0     Interface doesn't support scanning : Device or resource busy
    It looks like it already has the 5370 driver?
    Dell Inspiron 15R 5521 Ubuntu 13.04
    ************************
    AMD Phenom II x4 945***8GB DDR3 1333***Nvidia GeForce GT 440***Ubuntu 12.10

  4. #4
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    Re: TP LINK TL-WN727N question

    Deactivate the power management:
    Code:
    sudo iwconfig wlan0 power off
    You can try to install the driver with dkms according to this:
    http://forum.ubuntuusers.de/topic/d-...ion-ueber-DKMS

  5. #5
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    Re: TP LINK TL-WN727N question

    That didn't really seem to help. Now i'm having the problem of it randomly disconnecting and then it wont see my wifi signal. I have to unplug the adapter and plug it back in.
    Dell Inspiron 15R 5521 Ubuntu 13.04
    ************************
    AMD Phenom II x4 945***8GB DDR3 1333***Nvidia GeForce GT 440***Ubuntu 12.10

  6. #6
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    Re: TP LINK TL-WN727N question

    Please show:
    Code:
    iwlist chan
    sudo iwlist scan
    route -n
    ifconfig -a
    cat /etc/resolv.conf
    Try pure WPA2-AES encryption, a fixed channel, not to hide the network and to change the bandwidth to 20 MHz instead of 20/40 MHz

  7. #7
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    Re: TP LINK TL-WN727N question

    i did not see an option for wpa2-aes. I didn't see an option to change the bandwidth. But i have my router set to 20, not 40.

    Could my VPN be a problem? Sometimes when i disconnect the vpn the adapter will connect. Coincidence maybe? I have it set up the way they said to. It's by Private Internet Access.
    Dell Inspiron 15R 5521 Ubuntu 13.04
    ************************
    AMD Phenom II x4 945***8GB DDR3 1333***Nvidia GeForce GT 440***Ubuntu 12.10

  8. #8
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    Re: TP LINK TL-WN727N question

    Did you tick "connect automatically" in your VPN settings?

  9. #9
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    Re: TP LINK TL-WN727N question

    Yes, i wanted to make sure i didn't forget to connect to my vpn.
    Dell Inspiron 15R 5521 Ubuntu 13.04
    ************************
    AMD Phenom II x4 945***8GB DDR3 1333***Nvidia GeForce GT 440***Ubuntu 12.10

  10. #10
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    Re: TP LINK TL-WN727N question

    Try to compile this driver, Variant A:

    http://forum.ubuntuusers.de/topic/c3.../#post-2831641

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