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I'm using a fresh installed Ubuntu 18.04 on a PC, which mainly uses a wired network, but a wifi connection is also needed from time to time. For that, I'm using a wifi dongle - which works OK when dual boot as Windows, but when using Ubuntu: it DOES detect networks at home- but does NOT connect any.

TP-Links site refers to driver installation, includig a well detailed instructions doing so link to TP-LINK driver, which fails at very beginning as shown below at ATTCH #1.

Second try: referring to an almost exact problem posted here, but again, fails again at make

Appreciate you kind help

Guy

ATTCH#1

guy@desktop:~/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047$ make clean

#make -C /lib/modules/4.15.0-20-generic/build M=/home/guy/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047 clean

cd hal ; rm -fr */*/*/*.mod.c */*/*/*.mod */*/*/*.o */*/*/.*.cmd */*/*/*.ko

cd hal ; rm -fr */*/*.mod.c */*/*.mod */*/*.o */*/.*.cmd */*/*.ko

cd hal ; rm -fr */*.mod.c */*.mod */*.o */.*.cmd */*.ko

cd hal ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko

cd core/efuse ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko

cd core ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko

cd os_dep/linux ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko

cd os_dep ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko

cd platform ; rm -fr *.mod.c *.mod *.o .*.cmd *.ko

rm -fr Module.symvers ; rm -fr Module.markers ; rm -fr modules.order

rm -fr *.mod.c *.mod *.o .*.cmd *.ko *~

rm -fr .tmp_versions

guy@desktop:~/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047$ ma

ma: command not found

guy@desktop:~/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047$ make

make ARCH=x86_64 CROSS_COMPILE= -C /lib/modules/4.15.0-20-generic/build M=/home/guy/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047  modules

make[1]: Entering directory '/usr/src/linux-headers-4.15.0-20-generic'

Makefile:976: "Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel"

  CC [M]  /home/guy/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047/core/rtw_cmd.o

In file included from /home/guy/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047/include/osdep_service.h:47:0,

                 from /home/guy/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047/include/drv_types.h:27,

                 from /home/guy/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047/core/rtw_cmd.c:17:

/home/guy/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047/include/osdep_service_linux.h: In function ‘_init_timer’:

/home/guy/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047/include/osdep_service_linux.h:299:8: error: ‘_timer {aka struct timer_list}’ has no member named ‘data’

  ptimer->data = (unsigned long)cntx;

        ^~

/home/guy/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047/include/osdep_service_linux.h:300:2: error: implicit declaration of function ‘init_timer’; did you mean ‘_init_timer’? [-Werror=implicit-function-declaration]

  init_timer(ptimer);

  ^~~~~~~~~~

  _init_timer

cc1: some warnings being treated as errors

scripts/Makefile.build:332: recipe for target '/home/guy/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047/core/rtw_cmd.o' failed

make[2]: *** [/home/guy/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047/core/rtw_cmd.o] Error 1

Makefile:1552: recipe for target '_module_/home/guy/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047' failed

make[1]: *** [_module_/home/guy/Downloads/rtl8192EU_WiFi_linux_v5.2.19.1_25633.20171222_COEX20171113-0047] Error 2

make[1]: Leaving directory '/usr/src/linux-headers-4.15.0-20-generic'

Makefile:1828: recipe for target 'modules' failed

make: *** [modules] Error 2

In latest kernel some function obsolete so original driver need to modify according to new kernel.
download tp link drive from following link.

https://github.com/ZeeRooo/RTL8192EU

goto driver folder and run follwing commands.

# apt update

# apt-get install gcc make libelf-dev

# make

# make install

remove wifi usb dongle and reboot system.
Install wifi module

# modprobe 8192eu

now insert wifi dongle and test.
working for me tested on ubuntu 18.04 and Arch linux.