Wifi USB TL-WN722N not working on Debian 9

karim19841 · 02-13-2018, 11:53 AM

Hi,
I've just installed Debian 9 jessie but when I plug in the usb driver tp link wn722n Debian seem to try to connect but after a while nothing happen.
I've installed the firmware-atheros package and did everything is written on the official Debian site,but it just doesn't works.
The output of lsmod is:

Code:

Module                  Size  Used by
fuse                   98304  3
appletalk              36864  0
ax25                   57344  0
ipx                    28672  0
p8023                  16384  1 ipx
p8022                  16384  1 ipx
psnap                  16384  2 appletalk,ipx
llc                    16384  2 p8022,psnap
arc4                   16384  2
intel_rapl             20480  0
x86_pkg_temp_thermal    16384  0
intel_powerclamp       16384  0
coretemp               16384  0
kvm_intel             192512  0
kvm                   589824  1 kvm_intel
irqbypass              16384  1 kvm
ath9k_htc              65536  0
ath9k_common           32768  1 ath9k_htc
ath9k_hw              446464  2 ath9k_htc,ath9k_common
crct10dif_pclmul       16384  0
crc32_pclmul           16384  0
ghash_clmulni_intel    16384  0
snd_hda_codec_hdmi     49152  2
snd_hda_codec_realtek    90112  1
i915                 1232896  2
intel_cstate           16384  0
ath                    32768  3 ath9k_htc,ath9k_hw,ath9k_common
mac80211              671744  1 ath9k_htc
snd_hda_codec_generic    69632  1 snd_hda_codec_realtek
intel_uncore          118784  0
iTCO_wdt               16384  0
mxm_wmi                16384  0
iTCO_vendor_support    16384  1 iTCO_wdt
evdev                  24576  8
intel_rapl_perf        16384  0
snd_hda_intel          36864  0
cfg80211              589824  4 ath9k_htc,mac80211,ath,ath9k_common
snd_hda_codec         135168  4 snd_hda_intel,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
rfkill                 24576  4 cfg80211
snd_hda_core           81920  5 snd_hda_intel,snd_hda_codec,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
serio_raw              16384  0
pcspkr                 16384  0
snd_hwdep              16384  1 snd_hda_codec
wmi                    16384  1 mxm_wmi
sg                     32768  0
snd_pcm               110592  4 snd_hda_intel,snd_hda_codec,snd_hda_core,snd_hda_codec_hdmi
battery                20480  0
mei_me                 36864  0
lpc_ich                24576  0
video                  40960  1 i915
nuvoton_cir            20480  0
rc_core                28672  1 nuvoton_cir
mei                   102400  1 mei_me
mfd_core               16384  1 lpc_ich
snd_timer              32768  1 snd_pcm
snd                    86016  8 snd_hda_intel,snd_hwdep,snd_hda_codec,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek,snd_pcm
soundcore              16384  1 snd
intel_smartconnect     16384  0
button                 16384  1 i915
i2c_algo_bit           16384  1 i915
shpchp                 36864  0
nvidia_drm             45056  1
drm_kms_helper        155648  2 i915,nvidia_drm
drm                   360448  5 i915,nvidia_drm,drm_kms_helper
nvidia_modeset        790528  4 nvidia_drm
nvidia              12701696  67 nvidia_modeset
parport_pc             28672  0
ppdev                  20480  0
lp                     20480  0
parport                49152  3 lp,parport_pc,ppdev
ip_tables              24576  0
x_tables               36864  1 ip_tables
autofs4                40960  2
ext4                  585728  1
crc16                  16384  1 ext4
jbd2                  106496  1 ext4
crc32c_generic         16384  0
fscrypto               28672  1 ext4
ecb                    16384  0
mbcache                16384  2 ext4
sd_mod                 45056  3
hid_generic            16384  0
usbhid                 53248  0
hid                   122880  2 hid_generic,usbhid
sr_mod                 24576  0
cdrom                  61440  1 sr_mod
crc32c_intel           24576  2
aesni_intel           167936  1
aes_x86_64             20480  1 aesni_intel
glue_helper            16384  1 aesni_intel
lrw                    16384  1 aesni_intel
gf128mul               16384  1 lrw
ablk_helper            16384  1 aesni_intel
cryptd                 24576  3 ablk_helper,ghash_clmulni_intel,aesni_intel
i2c_i801               24576  0
i2c_smbus              16384  1 i2c_i801
firewire_ohci          40960  0
firewire_core          65536  1 firewire_ohci
psmouse               135168  0
crc_itu_t              16384  1 firewire_core
ahci                   36864  2
libahci                32768  1 ahci
tg3                   159744  0
ptp                    20480  1 tg3
pps_core               16384  1 ptp
libphy                 49152  1 tg3
xhci_pci               16384  0
libata                249856  2 ahci,libahci
ehci_pci               16384  0
xhci_hcd              188416  1 xhci_pci
ehci_hcd               81920  1 ehci_pci
scsi_mod              225280  4 sd_mod,libata,sr_mod,sg
usbcore               249856  6 ath9k_htc,usbhid,ehci_hcd,xhci_pci,xhci_hcd,ehci_pci
usb_common             16384  1 usbcore

and my interface file is:

Code:

 This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*
auto lo
iface lo inet loopback


auto wlan0
iface wlan0 inet dhcp
        wpa-ssid NsHome
        wpa-psk qwertyuiopasdfgh

ferrari · 02-13-2018, 12:26 PM

Hmmm... that seems very similar behaviour to this recent thread (involving a TPLink device)...
https://www.linuxquestions.org/quest...up-4175622186/

See if you can get it working as described in post #10 and #11. It uses a small set of commands (contained in a script), and called by 'post-up' in /etc/network/interfaces. You'll obviously need to use the device node name applicable to your wifi device ie wlan0

karim19841 · 02-13-2018, 12:55 PM

Thanks for having answered, however it doesn't work

ferrari · 02-13-2018, 01:03 PM

Then you're going to have to supply more information. Examine /var/log/wpa_supplicant.log following a connection attempt.

Are you able to scan for wireless networks successfully?

Code:

iw dev wlan0 scan

karim19841 · 02-13-2018, 01:16 PM

The command return "command failed: No such device (-19)". The weird things is that when I go to the list of WI-FI connection avaible in the GUI (i use GNOME) it shows my connection, but when I click on my connection it ask for my password but then it just stop connecting,as if it failed to complete the process.

ferrari · 02-13-2018, 03:15 PM

What network device nodes are reported?

Code:

ip link

If you have lshw installed, you can also do

Code:

lshw -network

Check that there are no problems with the driver or firmware loading...

Code:

dmesg|egrep "ath9k|firmware"