Ubuntu – Low wireless signal with TP-Link TL-WN725N WiFi dongle


i'm using a wireless adapter TP-Link TL-WN725N with this driver and wireless signal is extremely low in ubuntu 13.10 and barely loads google.
Thought no problems with it in windows.

How can i fix it?

wlan1     IEEE 802.11bgn  ESSID:"Iarna"  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency:2.427 GHz  Access Point: 64:66:B3:AF:CC:9A   
          Bit Rate:150 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=0/100  Signal level=2/100  Noise level=0/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

Best Answer

  • In my experience with TL-WN725N Dongle I thought it was the firmware from Git or the stock linux-firmware that comes from ubuntu to be problematic, but I followed this guide from http://linuxforums.org.uk/index.php?topic=11261.0 to retrace my steps and then I tried something different that I didn't believe that it will work, but it seems there is a conflict between these modules r8188eu and 8188eu and then what I did was:

    I added this line: blacklist r8188eu


    sudo gedit /etc/modprobe.d/blacklist.conf

    Save and Quit from Text Editor

    Then in

    sudo gedit /etc/modules

    I added this line at the end of the configuration: 8188eu. Save and Quit from Text Editor again

    Then you do

    sudo depmod -a
    sudo update-initramfs -u

    And before you reboot the system it is important to test these commands:

    Check if the module you already blacklisted with

    lsmod | grep r8188eu

    If it's not removed then remove it with

    sudo rmmod r8188eu

    And finally you do

    sudo rmmod 8188eu
    sudo modprobe 8188eu

    To refresh the module and you'll have a working with full signal wireless


    Let me know if you have working wireless because there isn't any workaround like this in (Forums/Wikis/Unofficial Blogs) and it's tested by me and it's working perfectly.

    You may notice that Network Manager is not showing you signals on the other wireless protected networks, but if you connect to the other wireless networks via WPA Key it will work as it should.