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Thread: TP-Link TL-WN821N Wifi Adaptor no interface

  1. #1
    Join Date
    2016-Dec
    Posts
    6

    TP-Link TL-WN821N Wifi Adaptor no interface

    Hello,
    4 weeks ago I received my TL-WN821N adaptor, of course I tried it immediately. But (like you can guess) it didn't work, it shows up at lsusb but there is no interface at ifconfig or iwconfig. Like always I googled and googled and i have tried more than 20 solutions, unfortunately none of them worked. I also tried my other Realtek adaptor and this worked perfectly so i think that it is a driver issue. The official driver from the site doesn't work because it is only for older kernels.

    Here is the output of dmesg, but I think that it is nothing spectaculair.
    Code:
    [  928.745955] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [  931.396045] usb 1-3: new high-speed USB device number 7 using ehci-pci
    [  931.545150] usb 1-3: New USB device found, idVendor=0bda, idProduct=818b
    [  931.545154] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
    [  931.545157] usb 1-3: Product: 802.11n NIC 
    [  931.545159] usb 1-3: Manufacturer: Realtek 
    [  931.545162] usb 1-3: SerialNumber: 00e04c000001
    [  933.860007] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [  938.980009] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [  944.100006] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [  949.220007] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [  954.340010] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [  959.460005] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [  964.580004] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [  969.700009] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [  974.820004] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [  979.940014] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [  985.060005] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [  990.185957] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [  995.300005] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [ 1000.420008] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [ 1005.545973] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [ 1010.660012] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [ 1015.780006] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    [ 1020.900007] de2104x 0000:0a:0c.0 eth0: set link 10baseT auto
    I am using the latest version of Kali Rolling so that can't be it, and it works on Windows 10 so it has nothing to do with the adaptor itself.

    Please help me with this problem, this is my last option to get it to work.
    Sorry if my English is bad

  2. #2
    Join Date
    2016-Oct
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    Can you show output of rfkill list all?

  3. #3
    Join Date
    2016-Dec
    Posts
    6
    It shows me nothing at all, also nothing with the other wifi adaptor. From this article that seems normal.

  4. #4
    Join Date
    2016-Oct
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    There must be missing drivers of your wifi adapter. Download them and copy them directly in /lib/firmware.
    Download this firmware.zip file from http://cdimage.debian.org/cdimage/un...essie/current/
    Open it, you may find drivers of your wifi adapter in it with that name.
    Last edited by _defalt; 2016-12-30 at 17:52.

  5. #5
    Join Date
    2016-Dec
    Posts
    6
    I am very happy to say that it works!!! Unfortunately your solution didn't work for me, but I realy appreciate your help. Here is how i did it:

    1. Download this git repository: https://github.com/Mange/rtl8192eu-linux-driver
    2. Install it with make and sudo make install
    3. blacklist the rtl8192cu driver
    - in terminal type: sudo nano /etc/modprobe.d/blacklist.conf
    - add the line blacklist rtl8192cu
    - save the file
    4. Reboot your pc and plug it in
    5. For me it didn't work the first time, so try multiple times if it doesn't work directy.

    I hope this helps others aswell.
    Last edited by NL2016; 2016-12-31 at 14:51. Reason: I forgot the blacklist step

  6. #6
    Join Date
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    Quote Originally Posted by NL2016 View Post
    I am very happy to say that it works!!! Unfortunately your solution didn't work for me, but I realy appreciate your help. Here is how i did it:

    blacklist the rtl8192cu driver
    - in terminal type: sudo nano /etc/modprobe.d/blacklist.conf
    - add the line blacklist rtl8192cu
    - save the file
    aah blacklist huh..My problem with the wireless adapter was also fixed by blacklisting a driver. Sometimes kernel loads the wrong module of your hardware and sometimes it even loads both right and wrong causing a conflict. That's why I first look in rfkill list to see if there's a conflict in wireless drivers.

  7. #7

    Question trouble with make command

    Quote Originally Posted by NL2016 View Post
    I am very happy to say that it works!!! Unfortunately your solution didn't work for me, but I realy appreciate your help. Here is how i did it:

    1. Download this git repository: https://github.com/Mange/rtl8192eu-linux-driver
    2. Install it with make and sudo make install
    3. blacklist the rtl8192cu driver
    - in terminal type: sudo nano /etc/modprobe.d/blacklist.conf
    - add the line blacklist rtl8192cu
    - save the file
    4. Reboot your pc and plug it in
    5. For me it didn't work the first time, so try multiple times if it doesn't work directy.

    I hope this helps others aswell.
    -------------------

    Hi dudes,

    Well, tried this solution (too), but when I gonna to the second step, I get this:

    root@kaliYuga:~/rtl8192eu-linux-driver# make
    make ARCH=x86_64 CROSS_COMPILE= -C /lib/modules/4.6.0-kali1-amd64/build M=/root/rtl8192eu-linux-driver modules
    make[1]: *** /lib/modules/4.6.0-kali1-amd64/build: Arquivo ou diretório não encontrado. Pare.
    Makefile:1335: recipe for target 'modules' failed
    make: *** [modules] Error 2

    If anyone can help, i would be really grateful. Iḿ getting late in the art and this little problems totally delay my studies.

    TKS

  8. #8
    Join Date
    2016-Dec
    Posts
    806
    I'm late to the party but _defalt, asking for rfkill list doesn't make sense in that case.

    noob_big-uncle, apt-get update && apt-get dist-upgrade then reboot. You have an old kernel. Current one is 4.9 or 4.10.

  9. #9
    gonna try it. tks bro.

  10. #10
    Join Date
    2017-Nov
    Posts
    14
    did you find a solution? i have the same problem

  11. #11
    Join Date
    2016-Dec
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    Canada
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    Quote Originally Posted by janjan View Post
    did you find a solution? i have the same problem
    Thank you for this I bought this same for nethunter because of the look. It wasn't loading I will try this. Much appreciated!

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