Eu tive o mesmo problema e achei esta página útil link
Eu entrei no terminal:
echo ath9k | sudo tee /etc/modules-load.d/ath9k.conf
Em seguida, reinicie
Basicamente, o computador reconhece a placa, mas nada relacionado à rede sem fio parece funcionar. Não aparece na rede. Eu também tentei este cartão na minha caixa de janelas, onde funciona perfeitamente.
Saída de dmesg
[ 3.651544] ath: EEPROM regdomain: 0x8348
[ 3.651545] ath: EEPROM indicates we should expect a country code
[ 3.651546] ath: doing EEPROM country->regdmn map search
[ 3.651546] ath: country maps to regdmn code: 0x3a
[ 3.651547] ath: Country alpha2 being used: US
[ 3.651547] ath: Regpair used: 0x3a
[ 3.651571] nommu_map_single: overflow 7f8d34040+1926 of device mask ffffffff
[ 3.651596] ath: phy0: dma_mapping_error() on RX init
[ 3.651648] ath9k 0000:21:00.0: Failed to initialize device
[ 3.651744] ath9k: probe of 0000:21:00.0 failed with error -12
Saída de sudo lshw -C network
*-network UNCLAIMED
description: Network controller
product: AR9287 Wireless Network Adapter (PCI-Express)
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:21:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress cap_list
configuration: latency=0
resources: memory:f7500000-f750ffff
uname -r :
4.10.1-041001-generic
editar:
saída do script de diagnóstico:
########## wireless info START ##########
Report from: 02 Jun 2017 16:27 PDT -0700
Booted last: 02 Jun 2017 00:00 PDT -0700
Script from: 25 Mar 2017 07:04 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 16.04.2 LTS
Release: 16.04
Codename: xenial
##### kernel ############################
Linux 4.10.1-041001-generic #201702260735 SMP Sun Feb 26 12:36:48 UTC 2017 x86_64 unknown unknown GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
1e:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
Subsystem: ASUSTeK Computer Inc. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1043:8677]
Kernel driver in use: r8169
21:00.0 Network controller [0280]: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express) [168c:002e] (rev 01)
Subsystem: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express) [168c:30a4]
Kernel modules: ath9k
##### lsusb #############################
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 005: ID 046d:c07e Logitech, Inc.
Bus 003 Device 004: ID 04f2:0833 Chicony Electronics Co., Ltd
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
##### lsmod #############################
eeepc_wmi 16384 0
asus_wmi 28672 1 eeepc_wmi
sparse_keymap 16384 1 asus_wmi
video 40960 1 asus_wmi
ath9k 147456 0
ath9k_common 36864 1 ath9k
ath9k_hw 466944 2 ath9k,ath9k_common
ath 28672 3 ath9k_hw,ath9k,ath9k_common
mac80211 782336 1 ath9k
cfg80211 602112 4 mac80211,ath9k,ath,ath9k_common
wmi 16384 1 asus_wmi
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
enp30s0 Link encap:Ethernet HWaddr <MAC 'enp30s0' [IF1]>
inet addr:192.168.2.6 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::2614:c730:926a:8d88/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:9600 errors:0 dropped:0 overruns:0 frame:0
TX packets:6340 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:11171754 (11.1 MB) TX bytes:934886 (934.8 KB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:1662 errors:0 dropped:0 overruns:0 frame:0
TX packets:1662 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:132298 (132.2 KB) TX bytes:132298 (132.2 KB)
##### iwconfig ##########################
enp30s0 no wireless extensions.
lo no wireless extensions.
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.2.1 0.0.0.0 UG 100 0 0 enp30s0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 enp30s0
192.168.2.0 0.0.0.0 255.255.255.0 U 100 0 0 enp30s0
##### resolv.conf #######################
nameserver 127.0.1.1
##### network managers ##################
Installed:
NetworkManager
Running:
root 1032 1 0 16:23 ? 00:00:00 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: enp30s0
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.VENDOR: Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
GENERAL.DRIVER: r8169
GENERAL.DRIVER-VERSION: 2.3LK-NAPI
GENERAL.FIRMWARE-VERSION:
GENERAL.HWADDR: <MAC 'enp30s0' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:01.3/0000:03:00.2/0000:1d:00.0/0000:1e:00.0/net/enp30s0
GENERAL.IP-IFACE: enp30s0
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: Wired connection 1
GENERAL.CON-UUID: d36c51b9-7c50-38a0-92ee-5e74abfd62b0
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/1
GENERAL.METERED: no (guessed)
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: 1000 Mb/s
CAPABILITIES.IS-SOFTWARE: no
WIRED-PROPERTIES.CARRIER: on
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{0}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: d36c51b9-7c50-38a0-92ee-5e74abfd62b0 | Wired connection 1
IP4.ADDRESS[1]: 192.168.2.6/24
IP4.GATEWAY: 192.168.2.1
IP4.ROUTE[1]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]: 192.168.2.1
DHCP4.OPTION[1]: requested_routers = 1
DHCP4.OPTION[2]: requested_domain_search = 1
DHCP4.OPTION[3]: server_name = Jacobs-MacBook-Pro.local
DHCP4.OPTION[4]: requested_time_offset = 1
DHCP4.OPTION[5]: requested_domain_name = 1
DHCP4.OPTION[6]: requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[7]: requested_broadcast_address = 1
DHCP4.OPTION[8]: requested_wpad = 1
DHCP4.OPTION[9]: requested_netbios_scope = 1
DHCP4.OPTION[10]: next_server = 192.168.2.1
DHCP4.OPTION[11]: expiry = 1496531409
DHCP4.OPTION[12]: requested_interface_mtu = 1
DHCP4.OPTION[13]: requested_subnet_mask = 1
DHCP4.OPTION[14]: dhcp_lease_time = 85536
DHCP4.OPTION[15]: dhcp_message_type = 5
DHCP4.OPTION[16]: ip_address = 192.168.2.6
DHCP4.OPTION[17]: requested_static_routes = 1
DHCP4.OPTION[18]: requested_domain_name_servers = 1
DHCP4.OPTION[19]: routers = 192.168.2.1
DHCP4.OPTION[20]: broadcast_address = 192.168.2.255
DHCP4.OPTION[21]: requested_ntp_servers = 1
DHCP4.OPTION[22]: requested_netbios_name_servers = 1
DHCP4.OPTION[23]: domain_name_servers = 192.168.2.1
DHCP4.OPTION[24]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[25]: subnet_mask = 255.255.255.0
DHCP4.OPTION[26]: network_number = 192.168.2.0
DHCP4.OPTION[27]: requested_host_name = 1
DHCP4.OPTION[28]: dhcp_server_identifier = 192.168.2.1
IP6.ADDRESS[1]: fe80::2614:c730:926a:8d88/64
IP6.GATEWAY:
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
##### iw reg get ########################
Region: America/Los_Angeles (based on set time zone)
country 00: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 40), (N/A, 20), (N/A), NO-IR
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, NO-IR
(5170 - 5250 @ 80), (N/A, 20), (N/A), NO-IR
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, NO-IR
(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, NO-IR
(5735 - 5835 @ 80), (N/A, 20), (N/A), NO-IR
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
##### iwlist channels ###################
enp30s0 no frequency information.
lo no frequency information.
##### iwlist scan #######################
enp30s0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
##### module infos ######################
[ath9k]
filename: /lib/modules/4.10.1-041001-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko
license: Dual BSD/GPL
description: Support for Atheros 802.11n wireless LAN cards.
author: Atheros Communications
srcversion: 8D9A8DB09580DED6F4121A4
depends: mac80211,ath9k_hw,ath9k_common,cfg80211,ath
intree: Y
vermagic: 4.10.1-041001-generic SMP mod_unload
parm: debug:Debugging mask (uint)
parm: nohwcrypt:Disable hardware encryption (int)
parm: blink:Enable LED blink on activity (int)
parm: led_active_high:Invert LED polarity (int)
parm: btcoex_enable:Enable wifi-BT coexistence (int)
parm: bt_ant_diversity:Enable WLAN/BT RX antenna diversity (int)
parm: ps_enable:Enable WLAN PowerSave (int)
parm: use_chanctx:Enable channel context for concurrency (int)
[ath9k_common]
filename: /lib/modules/4.10.1-041001-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_common.ko
license: Dual BSD/GPL
description: Shared library for Atheros wireless 802.11n LAN cards.
author: Atheros Communications
srcversion: 4A717CCB1446CC9DB8FCEC7
depends: ath9k_hw,cfg80211,ath
intree: Y
vermagic: 4.10.1-041001-generic SMP mod_unload
[ath9k_hw]
filename: /lib/modules/4.10.1-041001-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_hw.ko
license: Dual BSD/GPL
description: Support for Atheros 802.11n wireless LAN cards.
author: Atheros Communications
srcversion: 41F2314E0EE763A827038D0
depends: ath
intree: Y
vermagic: 4.10.1-041001-generic SMP mod_unload
[ath]
filename: /lib/modules/4.10.1-041001-generic/kernel/drivers/net/wireless/ath/ath.ko
license: Dual BSD/GPL
description: Shared library for Atheros wireless LAN cards.
author: Atheros Communications
srcversion: 4B8612B6FF71DD27AE8CE67
depends: cfg80211
intree: Y
vermagic: 4.10.1-041001-generic SMP mod_unload
[mac80211]
filename: /lib/modules/4.10.1-041001-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: E52821BAF5B1A86DD9B493B
depends: cfg80211
intree: Y
vermagic: 4.10.1-041001-generic SMP mod_unload
parm: minstrel_vht_only:Use only VHT rates when VHT is supported by sta. (bool)
parm: max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm: max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm: beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm: probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm: ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)
[cfg80211]
filename: /lib/modules/4.10.1-041001-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 069B9FECEE6C93D61A92E18
depends:
intree: Y
vermagic: 4.10.1-041001-generic SMP mod_unload
parm: bss_entries_limit:limit to number of scan BSS entries (per wiphy, default 1000) (int)
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
##### module parameters #################
[ath9k]
blink: 0
bt_ant_diversity: 0
btcoex_enable: 0
led_active_high: -1
nohwcrypt: 1
ps_enable: 0
use_chanctx: 0
[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
minstrel_vht_only: Y
probe_wait_ms: 500
[cfg80211]
bss_entries_limit: 1000
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
##### modprobe options ##################
[/etc/modprobe.d/amd64-microcode-blacklist.conf]
blacklist microcode
[/etc/modprobe.d/ath9k.conf]
options ath9k nohwcrypt=1
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac
[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off
[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
##### rc.local ##########################
exit 0
##### pm-utils ##########################
##### udev rules ########################
##### dmesg #############################
[ 3.628167] ath9k 0000:21:00.0: enabling device (0000 -> 0002)
[ 3.717711] ath: EEPROM regdomain: 0x8348
[ 3.717712] ath: EEPROM indicates we should expect a country code
[ 3.717713] ath: doing EEPROM country->regdmn map search
[ 3.717713] ath: country maps to regdmn code: 0x3a
[ 3.717714] ath: Country alpha2 being used: US
[ 3.717714] ath: Regpair used: 0x3a
[ 3.717784] ath: phy0: dma_mapping_error() on RX init
[ 3.717840] ath9k 0000:21:00.0: Failed to initialize device
[ 3.717941] ath9k: probe of 0000:21:00.0 failed with error -12
[ 4.529809] IPv6: ADDRCONF(NETDEV_UP): enp30s0: link is not ready
[ 4.556525] r8169 0000:1e:00.0 enp30s0: link down (repeated 2 times)
[ 4.556611] IPv6: ADDRCONF(NETDEV_UP): enp30s0: link is not ready
[ 8.589885] r8169 0000:1e:00.0 enp30s0: link up
[ 8.589895] IPv6: ADDRCONF(NETDEV_CHANGE): enp30s0: link becomes ready
########## wireless info END ############