Problem with D-Link DWA171 on ubuntu 16.04 LTS

[kamil-bartczak06839]

I have a problem with an external network card D-LINK DWA-171 - model C on Ubuntu 16.04


When trying to compile official drivers downloaded from https://support.dlink.com/ProductInfo.aspx?m=DWA-171 an error occurs

praca@Praca:~/Pobrane/20180518_DWA-171C_RTL8811CU_Linux_driver_v5.2.15.2/rtl8821CU_WiFi_linux_v5.2.15.2_27778.20180515_COEX20171114-2525$ make
    make ARCH=x86_64 CROSS_COMPILE= -C /lib/modules/4.15.0-42-generic/build M=/home/praca/Pobrane/20180518_DWA-171C_RTL8811CU_Linux_driver_v5.2.15.2/rtl8821CU_WiFi_linux_v5.2.15.2_27778.20180515_COEX20171114-2525  modules
    make[1]: Entering directory '/usr/src/linux-headers-4.15.0-42-generic'
    CC [M]  /home/praca/Pobrane/20180518_DWA-171C_RTL8811CU_Linux_driver_v5.2.15.2/rtl8821CU_WiFi_linux_v5.2.15.2_27778.20180515_COEX20171114-2525/core/rtw_cmd.o
    In file included from /home/praca/Pobrane/20180518_DWA-171C_RTL8811CU_Linux_driver_v5.2.15.2/rtl8821CU_WiFi_linux_v5.2.15.2_27778.20180515_COEX20171114-2525/include/osdep_service.h:47:0,
                    from /home/praca/Pobrane/20180518_DWA-171C_RTL8811CU_Linux_driver_v5.2.15.2/rtl8821CU_WiFi_linux_v5.2.15.2_27778.20180515_COEX20171114-2525/include/drv_types.h:27,
                    from /home/praca/Pobrane/20180518_DWA-171C_RTL8811CU_Linux_driver_v5.2.15.2/rtl8821CU_WiFi_linux_v5.2.15.2_27778.20180515_COEX20171114-2525/core/rtw_cmd.c:17:
    /home/praca/Pobrane/20180518_DWA-171C_RTL8811CU_Linux_driver_v5.2.15.2/rtl8821CU_WiFi_linux_v5.2.15.2_27778.20180515_COEX20171114-2525/include/osdep_service_linux.h: In function ‘_init_timer’:
    /home/praca/Pobrane/20180518_DWA-171C_RTL8811CU_Linux_driver_v5.2.15.2/rtl8821CU_WiFi_linux_v5.2.15.2_27778.20180515_COEX20171114-2525/include/osdep_service_linux.h:299:8: error: ‘_timer {aka struct timer_list}’ has no member named ‘data’
    ptimer->data = (unsigned long)cntx;
            ^
    /home/praca/Pobrane/20180518_DWA-171C_RTL8811CU_Linux_driver_v5.2.15.2/rtl8821CU_WiFi_linux_v5.2.15.2_27778.20180515_COEX20171114-2525/include/osdep_service_linux.h:300:2: error: implicit declaration of function ‘init_timer’ [-Werror=implicit-function-declaration]
    init_timer(ptimer);
    ^
    cc1: some warnings being treated as errors
    scripts/Makefile.build:332: polecenia dla obiektu '/home/praca/Pobrane/20180518_DWA-171C_RTL8811CU_Linux_driver_v5.2.15.2/rtl8821CU_WiFi_linux_v5.2.15.2_27778.20180515_COEX20171114-2525/core/rtw_cmd.o' nie powiodły się
    make[2]: *** [/home/praca/Pobrane/20180518_DWA-171C_RTL8811CU_Linux_driver_v5.2.15.2/rtl8821CU_WiFi_linux_v5.2.15.2_27778.20180515_COEX20171114-2525/core/rtw_cmd.o] Błąd 1
    Makefile:1551: recipe for target '_module_/home/praca/Pobrane/20180518_DWA-171C_RTL8811CU_Linux_driver_v5.2.15.2/rtl8821CU_WiFi_linux_v5.2.15.2_27778.20180515_COEX20171114-2525' failed
    make[1]: *** [_module_/home/praca/Pobrane/20180518_DWA-171C_RTL8811CU_Linux_driver_v5.2.15.2/rtl8821CU_WiFi_linux_v5.2.15.2_27778.20180515_COEX20171114-2525] Error 2
    make[1]: Leaving directory '/usr/src/linux-headers-4.15.0-42-generic'
    Makefile:1856: recipe for target 'modules' failed
    make: *** [modules] Error 2

So I found another solutions
http://startusingubuntu.blogspot.com...k-dwd-171.html
However, after making the whole manual, the external network card still does not work.


I was also interested in the mention in readme attached to the official drivers

Please note that DWA-171C support auto install driver function in Windwos OS,
    user should exit Flash disk mode(default) to active adapter mode.

The

lsusb

command also finds nothing with the name "D-Link".

praca@Praca:~$ lsusb
    Bus 002 Device 004: ID 0bda:1a2b Realtek Semiconductor Corp. 
    Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 001 Device 004: ID 1d57:0005 Xenta Wireless Receiver (Keyboard and Mouse)
    Bus 001 Device 003: ID 1a2c:0c21 China Resource Semico Co., Ltd 
    Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 001 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 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

PS. External network card works perfectly on Windows10

How can I solve this problem?


Thank you in advance for your help.

[chili555]

Is usb_modeswitch installed?

sudo dpkg -s usb_modeswitch

Possibly helpful: https://askubuntu.com/questions/1080...h-for-wifi-usb

[kamil-bartczak06839]

I did everything that was in the link. And now

lsusb

actually returns usb with the name "d-link".

praca@Praca:~$ lsusb
Bus 002 Device 003: ID 2001:331d D-Link Corp. 
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 1d57:0005 Xenta Wireless Receiver (Keyboard and Mouse)
Bus 001 Device 003: ID 1a2c:0c21 China Resource Semico Co., Ltd 
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 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 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

However, after reinstalling the drivers form link http://startusingubuntu.blogspot.com...k-dwd-171.html .I still don't have a wireless network.

[chili555]

However, after reinstalling the drivers form link http://startusingubuntu.blogspot.com...k-dwd-171.html .I still don't have a wireless network.

That was a very smart guy that gave those instructions; however, the driver is for a different revision of your device and a different chipset.

Please see posts #4 and 5 here: https://ubuntuforums.org/showthread....ight=rtl8821CU

[kamil-bartczak06839]

At the beginning I would like to thank you for your time

Unfortunately, the external network card still does not work.

I used

sudo apt update
sudo apt install build-essential git dkms
git clone https://github.com/whitebatman2/rtl8821CU.git
DRV_NAME=rtl8821CU
DRV_VERSION=5.2.5.3
sudo mkdir /usr/src/${DRV_NAME}-${DRV_VERSION}
cd rtl8821CU
git archive master | sudo tar -x -C /usr/src/${DRV_NAME}-${DRV_VERSION}
sudo dkms add -m ${DRV_NAME} -v ${DRV_VERSION}
sudo dkms build -m ${DRV_NAME} -v ${DRV_VERSION}
sudo dkms install -m ${DRV_NAME} -v ${DRV_VERSION}

However, despite the lack of any errors or warnings, it still does not work.
Did I do something wrong?

[kamil-bartczak06839]

Any help?

[chili555]

What is the exact response to the terminal command:

sudo modprobe 8821cu

Thanks.