Slow wireless connection with ath9k driver in ubuntu 11, 12 and 13

[hnik]

Hello everyone,
I'm having troubles to get a acceptable signal strengh in Ubuntu with my new laptop. I followed the instructions of this post, but had no changes at all.

h_nik@pt-notebook1:~$ lspci -nnk | grep -iA2 net
02:00.0 Network controller [0280]: Atheros Communications Inc. AR9485 Wireless Network Adapter [168c:0032] (rev 01)
    Subsystem: AzureWave Device [1a3b:2126]
    Kernel driver in use: ath9k
03:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8161 Gigabit Ethernet [1969:1091] (rev 10)
    Subsystem: ASUSTeK Computer Inc. Device [1043:200f]
    Kernel driver in use: alx

h_nik@pt-notebook1:~$ lsmod
Module                  Size  Used by
ath9k                 149924  0 
dm_crypt               22820  1 
coretemp               13355  0 
kvm_intel             132891  0 
kvm                   443165  1 kvm_intel
snd_hda_codec_hdmi     36748  1 
snd_hda_codec_via      51018  1 
asus_nb_wmi            12854  0 
asus_wmi               24213  1 asus_nb_wmi
sparse_keymap          13890  1 asus_wmi
snd_hda_intel          39619  6 
snd_hda_codec         136128  3 snd_hda_codec_hdmi,snd_hda_codec_via,snd_hda_intel
snd_hwdep              13602  1 snd_hda_codec
parport_pc             32688  0 
ppdev                  17073  0 
snd_pcm                97451  3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
bnep                   18036  2 
snd_page_alloc         18710  2 snd_pcm,snd_hda_intel
snd_seq_midi           13324  0 
snd_seq_midi_event     14899  1 snd_seq_midi
rfcomm                 42641  12 
microcode              22881  0 
arc4                   12615  2 
snd_rawmidi            30180  1 snd_seq_midi
uvcvideo               80847  0 
psmouse                95870  0 
serio_raw              13215  0 
videobuf2_vmalloc      13056  1 uvcvideo
ath9k_common           14055  1 ath9k
videobuf2_memops       13202  1 videobuf2_vmalloc
snd_seq                61554  2 snd_seq_midi_event,snd_seq_midi
joydev                 17377  0 
videobuf2_core         40513  1 uvcvideo
ath9k_hw              413680  2 ath9k_common,ath9k
videodev              129260  2 uvcvideo,videobuf2_core
ath                    23827  3 ath9k_common,ath9k,ath9k_hw
mac80211              606411  1 ath9k
snd_seq_device         14497  3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer              29425  2 snd_pcm,snd_seq
mac_hid                13205  0 
snd                    68876  22 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_via,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device
cfg80211              510937  3 ath,ath9k,mac80211
btusb                  18334  0 
bluetooth             228619  22 bnep,btusb,rfcomm
soundcore              12680  1 snd
alx                    67960  0 
lpc_ich                17061  0 
hid_multitouch         17366  0 
mdio                   13807  1 alx
mei                    41158  0 
nls_iso8859_1          12713  1 
lp                     17759  0 
parport                46345  3 lp,ppdev,parport_pc
hid_generic            12540  0 
usbhid                 47074  1 hid_multitouch
hid                   101002  3 hid_multitouch,hid_generic,usbhid
ghash_clmulni_intel    13259  0 
wmi                    19070  1 asus_wmi
i915                  600303  3 
aesni_intel            55399  155 
aes_x86_64             17255  1 aesni_intel
xts                    12885  1 aesni_intel
lrw                    13257  1 aesni_intel
gf128mul               14951  2 lrw,xts
ablk_helper            13597  1 aesni_intel
cryptd                 20373  4 ghash_clmulni_intel,aesni_intel,ablk_helper
video                  19390  2 i915,asus_wmi
i2c_algo_bit           13413  1 i915
drm_kms_helper         49394  1 i915
drm                   286313  4 i915,drm_kms_helper
ahci                   25731  3 
libahci                31364  1 ahci

Please help me! Somebody....
I'm already looking for a solution for weeks. I even installed different Ubuntu versions. Currently I'm using Ubuntu 13.04.

Thanks
Nik

[praseodym]

Deactivate the hardware encryption of the driver:

echo "options ath9k nohwcrypt=1" | sudo tee /etc/modprobe.d/ath9k.conf
sudo modprobe -rfv ath9k
sudo modprobe -v ath9k

[hnik]

Deactivate the hardware encryption of the driver:

echo "options ath9k nohwcrypt=1" | sudo tee /etc/modprobe.d/ath9k.conf
sudo modprobe -rfv ath9k
sudo modprobe -v ath9k

Thank you for the quick reply!
I followed your instructions, but there were no changes at all.

Here is the terminal's output if it helps anyway:

h_nik@pt-notebook1:~$ echo "options ath9k nohwcrypt=1" | sudo tee /etc/modprobe.d/ath9k.conf
[sudo] password for h_nik: 
options ath9k nohwcrypt=1
h_nik@pt-notebook1:~$ sudo modprobe -rfv ath9k
rmmod ath9k
rmmod mac80211
rmmod ath9k_common
rmmod ath9k_hw
rmmod ath
rmmod cfg80211
h_nik@pt-notebook1:~$ sudo modprobe -v ath9k
insmod /lib/modules/3.8.0-16-generic/kernel/net/wireless/cfg80211.ko 
insmod /lib/modules/3.8.0-16-generic/kernel/net/mac80211/mac80211.ko 
insmod /lib/modules/3.8.0-16-generic/kernel/drivers/net/wireless/ath/ath.ko 
insmod /lib/modules/3.8.0-16-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_hw.ko 
insmod /lib/modules/3.8.0-16-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_common.ko 
insmod /lib/modules/3.8.0-16-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko nohwcrypt=1

Thanks
Nik

[wildmanne39]

Please change your wireless settings in network manager to match the screenshots.
Thanks

[hnik]

Please change your wireless settings in network manager to match the screenshots.
Thanks

Thanks for the reply!
I did, but still no changes.

Greetings
Nik

[praseodym]

Try pure WPA2-AES (CCMP) encryption.

[hnik]

Try pure WPA2-AES (CCMP) encryption.

I made this changes in my router's configuration, but nothing changed.

I don't think it's a good idea to solve it like that. Wouldn't I have the same problem on other routers, using TKIP, again?
Thanks

[wildmanne39]

Post the content of:

gksudo gedit /etc/modprobe.d/ath9k.conf

How slow is your connection?
Thanks

[hnik]

Post the content of:

gksudo gedit /etc/modprobe.d/ath9k.conf

options ath9k nohwcrypt=1

How slow is your connection?

I did the pings about 5 meters away of the rooter:
Win 8:

C:\Users\n.hell>ping 192.168.1.1 
 
Pinging 192.168.1.1 with 32 bytes of data: 
Reply from 192.168.1.1: bytes=32 time=2ms TTL=64 
Reply from 192.168.1.1: bytes=32 time=2ms TTL=64 
Reply from 192.168.1.1: bytes=32 time=6ms TTL=64 
Reply from 192.168.1.1: bytes=32 time=2ms TTL=64 
 
Ping statistics for 192.168.1.1: 
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), 
Approximate round trip times in milli-seconds: 
    Minimum = 2ms, Maximum = 6ms, Average = 3ms

Ubuntu 13.4:

h_nik@pt-notebook1:~$ ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_req=1 ttl=64 time=7.05 ms
64 bytes from 192.168.1.1: icmp_req=2 ttl=64 time=9.75 ms
64 bytes from 192.168.1.1: icmp_req=3 ttl=64 time=6.09 ms
64 bytes from 192.168.1.1: icmp_req=4 ttl=64 time=27.9 ms
^C
--- 192.168.1.1 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3004ms
rtt min/avg/max/mdev = 6.095/12.700/27.902/8.879 ms

Thanks
Nik

[wildmanne39]

I have no more ideas.