[xubuntu] Problema com WIFI

Sou nova no linux e estou adorando o xubuntu, o ratinho é fofo! kkk

Estou com um problema com minha rede wifi, ela não fica tão rapida como no windows. Pesquisei no google sobre solucões e nenhuma resolveu meu problema.

Problemas

- Sinal de Wifi fica bem mais baixo que no windows
- Um pouco de lentidão

Eu li sobre instalar o driver da minha placa sem ser o driver genérico e nenhuma solução que achei consegui executar com sucesso.

Segue algumas informações que podem ajudar...

# lspci | grep Wireless

03:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)

# lspci -k |grep -i wireless -A 2;ifconfig;iwconfig

03:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)
Subsystem: Lite-On Communications Inc QCA9565 / AR9565 Wireless Network Adapter
Kernel driver in use: ath9k
Kernel modules: ath9k
enp2s0 Link encap:Ethernet Endereço de HW 1c:39:47:0b:9b:8e
UP BROADCAST MULTICAST MTU:1500 Métrica:1
pacotes RX:0 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:0 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

lo Link encap:Loopback Local
inet end.: 127.0.0.1 Masc:255.0.0.0
endereço inet6: ::1/128 Escopo:Máquina
UP LOOPBACK RUNNING MTU:65536 Métrica:1
pacotes RX:5444998 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:5444998 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1
RX bytes:433311203 (433.3 MB) TX bytes:433311203 (433.3 MB)

wlp3s0 Link encap:Ethernet Endereço de HW ac:e0:10:79:b2:37
inet end.: 192.168.254.5 Bcast:192.168.254.255 Masc:255.255.255.0
endereço inet6: fe80::7367:6d02:ef49:ca31/64 Escopo:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Métrica:1
pacotes RX:165926 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:105370 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:218605855 (218.6 MB) TX bytes:12653619 (12.6 MB)

wlp3s0 IEEE 802.11bgn ESSID:"castelo da Julia"
Mode:Managed Frequency:2.412 GHz Access Point: B4:B3:62:54:EA:54
Bit Rate=135 Mb/s Tx-Power=17 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=47/70 Signal level=-63 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

enp2s0 no wireless extensions.

lo no wireless extensions.

# uname -mrs

Linux 4.4.0-42-generic x86_64

# cat /etc/*-release DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.1 LTS"
NAME="Ubuntu"
VERSION="16.04.1 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.1 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
UBUNTU_CODENAME=xenial

# lsmod

Module Size Used by
btrfs 987136 0
xor 24576 1 btrfs
raid6_pq 102400 1 btrfs
ufs 73728 0
qnx4 16384 0
hfsplus 106496 0
hfs 57344 0
minix 36864 0
ntfs 98304 0
msdos 20480 0
jfs 180224 0
xfs 970752 0
libcrc32c 16384 1 xfs
ath9k 143360 0
ath9k_common 36864 1 ath9k
ath9k_hw 466944 2 ath9k_common,ath9k
ath 32768 3 ath9k_common,ath9k,ath9k_hw
mac80211 737280 1 ath9k
cfg80211 565248 4 ath,ath9k_common,ath9k,mac80211
bnep 20480 2
drbg 32768 1
ansi_cprng 16384 0
ctr 16384 1
ccm 20480 1
pci_stub 16384 1
vboxpci 24576 0
vboxnetadp 28672 0
vboxnetflt 28672 0
vboxdrv 454656 3 vboxnetadp,vboxnetflt,vboxpci
rtsx_usb_ms 20480 0
memstick 20480 1 rtsx_usb_ms
intel_rapl 20480 0
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
uvcvideo 90112 0
coretemp 16384 0
videobuf2_vmalloc 16384 1 uvcvideo
kvm_intel 172032 0
videobuf2_memops 16384 1 videobuf2_vmalloc
kvm 540672 1 kvm_intel
irqbypass 16384 1 kvm
videobuf2_v4l2 28672 1 uvcvideo
videobuf2_core 36864 2 uvcvideo,videobuf2_v4l2
v4l2_common 16384 1 videobuf2_v4l2
ath3k 20480 0
videodev 176128 4 uvcvideo,v4l2_common,videobuf2_core,videobuf2_v4l2
snd_hda_codec_hdmi 53248 1
btusb 45056 0
btrtl 16384 1 btusb
media 24576 2 uvcvideo,videodev
btbcm 16384 1 btusb
btintel 16384 1 btusb
bluetooth 520192 10 bnep,ath3k,btbcm,btrtl,btusb,btintel
arc4 16384 2
crct10dif_pclmul 16384 0
snd_hda_codec_realtek 86016 1
snd_hda_codec_generic 77824 1 snd_hda_codec_realtek
crc32_pclmul 16384 0
snd_hda_intel 40960 7
aesni_intel 167936 2
snd_hda_codec 135168 4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
aes_x86_64 20480 1 aesni_intel
snd_hda_core 73728 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
joydev 20480 0
hid_multitouch 20480 0
acer_wmi 20480 0
sparse_keymap 16384 1 acer_wmi
snd_hwdep 16384 1 snd_hda_codec
lrw 16384 1 aesni_intel
snd_pcm 106496 5 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
gf128mul 16384 1 lrw
glue_helper 16384 1 aesni_intel
input_leds 16384 0
ablk_helper 16384 1 aesni_intel
snd_seq_midi 16384 0
serio_raw 16384 0
cryptd 20480 2 aesni_intel,ablk_helper
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 1 snd_seq_midi
snd_seq 69632 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 32768 2 snd_pcm,snd_seq
mac_hid 16384 0
snd 81920 24 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device
dw_dmac 16384 0
lpc_ich 24576 0
mei_me 36864 0
dw_dmac_core 24576 1 dw_dmac
soundcore 16384 1 snd
dell_smo8800 16384 0
mei 98304 1 mei_me
acpi_pad 20480 0
spi_pxa2xx_platform 24576 0
i2c_designware_platform 16384 0
i2c_designware_core 20480 1 i2c_designware_platform
8250_dw 16384 0
tpm_crb 16384 0
shpchp 36864 0
binfmt_misc 20480 1
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,ppdev,parport_pc
autofs4 40960 2
rtsx_usb_sdmmc 28672 0
rtsx_usb 24576 2 rtsx_usb_sdmmc,rtsx_usb_ms
hid_generic 16384 0
usbhid 49152 0
nouveau 1495040 1
i915 1208320 7
mxm_wmi 16384 1 nouveau
ttm 94208 1 nouveau
i2c_algo_bit 16384 2 i915,nouveau
drm_kms_helper 155648 2 i915,nouveau
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
ahci 36864 2
fb_sys_fops 16384 1 drm_kms_helper
libahci 32768 1 ahci
drm 364544 11 ttm,i915,drm_kms_helper,nouveau
r8169 81920 0
mii 16384 1 r8169
sdhci_acpi 16384 0
sdhci 45056 1 sdhci_acpi
video 40960 3 i915,acer_wmi,nouveau
i2c_hid 20480 0
fjes 28672 0
hid 118784 4 i2c_hid,hid_multitouch,hid_generic,usbhid
wmi 20480 3 acer_wmi,mxm_wmi,nouveau

OBS:. Se tiverem dicas de otimização no geral também aceito...