%20802.11bg%20%E6%B2%A1%E6%9C%89%20Wi-Fi.png)
我的 wifi 卡是 Atheros Qualcomm AR|5005G(s) 802.11bg，AR2413/2414
它既不是硬阻塞也不是软阻塞。电源管理已关闭。Wi-Fi 网络菜单中的按钮被禁用。
wireless.info 脚本提供了有关我的配置的附加信息：
########## wireless info START ##########
Report from: 05 Jan 2018 12:48 EET +0200
Booted last: 05 Jan 2018 00:00 EET +0200
Script from: 05 Dec 2017 03:13 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 17.10
Release: 17.10
Codename: artful
##### kernel ############################
Linux 4.14.0-041400-generic #201711122031 SMP Sun Nov 12 20:40:36 UTC 2017 i686 i686 i686 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Lubuntu
##### lspci #############################
09:02.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter [10ec:8139] (rev 10)
Subsystem: Toshiba America Info Systems RTL-8100/8101L/8139 PCI Fast Ethernet Adapter [1179:ff31]
Kernel driver in use: 8139too
09:04.0 Ethernet controller [0200]: Qualcomm Atheros AR2413/AR2414 Wireless Network Adapter [AR5005G(S) 802.11bg] [168c:001a] (rev 01)
Subsystem: Askey Computer Corp. AR2413/AR2414 Wireless Network Adapter [AR5005G(S) 802.11bg] [144f:7094]
Kernel driver in use: ath5k
##### lsusb #############################
Bus 001 Device 003: ID 2717:ff40
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
##### PCMCIA card info ##################
PRODID_1=""
PRODID_2=""
PRODID_3=""
PRODID_4=""
MANFID=0000,0000
FUNCID=255
##### rfkill ############################
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### lsmod #############################
ath5k 135168 0
ath 24576 1 ath5k
mac80211 675840 1 ath5k
cfg80211 524288 3 mac80211,ath,ath5k
wmi 20480 1 toshiba_acpi
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback <MAC address> brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp9s2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
link/ether <MAC 'enp9s2' [IF1]> brd <MAC address>
3: wlp9s4: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether <MAC 'wlp9s4' [IF2]> brd <MAC address>
##### iwconfig ##########################
enp9s2 no wireless extensions.
lo no wireless extensions.
wlp9s4 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
##### route #############################
##### resolv.conf #######################
nameserver 127.0.0.53
##### network managers ##################
Installed:
NetworkManager
Running:
root 434 1 0 12:40 ? 00:00:00 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: wlp9s4
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.VENDOR: Qualcomm Atheros
GENERAL.PRODUCT: AR2413/AR2414 Wireless Network Adapter [AR5005G(S) 802.11bg]
GENERAL.DRIVER: ath5k
GENERAL.DRIVER-VERSION: 4.14.0-041400-generic
GENERAL.FIRMWARE-VERSION: N/A
GENERAL.HWADDR: <MAC 'wlp9s4' [IF2]>
GENERAL.MTU: 1500
GENERAL.STATE: 30 (disconnected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:14.4/0000:09:04.0/net/wlp9s4
GENERAL.IP-IFACE: --
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: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
CAPABILITIES.SRIOV: no
WIFI-PROPERTIES.WEP: yes
WIFI-PROPERTIES.WPA: yes
WIFI-PROPERTIES.WPA2: yes
WIFI-PROPERTIES.TKIP: yes
WIFI-PROPERTIES.CCMP: yes
WIFI-PROPERTIES.AP: yes
WIFI-PROPERTIES.ADHOC: yes
WIFI-PROPERTIES.2GHZ: yes
WIFI-PROPERTIES.5GHZ: no
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{2,1}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: d47b67af-bc1e-4dea-b144-aab7bf326629 | MykolaU-plus
CONNECTIONS.AVAILABLE-CONNECTIONS[2]: ea5126b3-9180-48df-b699-e47b2cc55f36 | MykolaU
GENERAL.DEVICE: enp9s2
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.VENDOR: Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT: RTL-8100/8101L/8139 PCI Fast Ethernet Adapter
GENERAL.DRIVER: 8139too
GENERAL.DRIVER-VERSION: 0.9.28
GENERAL.FIRMWARE-VERSION: --
GENERAL.HWADDR: <MAC 'enp9s2' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 2 (Device is now managed)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:14.4/0000:09:02.0/net/enp9s2
GENERAL.IP-IFACE: --
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: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
CAPABILITIES.SRIOV: no
WIRED-PROPERTIES.CARRIER: off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: --
SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE *
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile
[ifupdown]
managed=false
[device]
wifi.scan-rand-mac-address=no
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/MykolaU-plus]] (600 root)
[connection] id=MykolaU-plus | type=wifi | permissions=
[wifi] mac-address=<MAC 'wlp9s4' [IF2]> | mac-address-blacklist= | ssid=MykolaU-plus
[ipv4] method=auto
[ipv6] method=ignore
[[/etc/NetworkManager/system-connections/MykolaU]] (600 root)
[connection] id=MykolaU | type=wifi | permissions=
[wifi] mac-address=<MAC 'wlp9s4' [IF2]> | mac-address-blacklist= | ssid=MykolaU
[ipv4] method=auto
[ipv6] method=auto
##### Netplan config ####################
[/etc/netplan/01-network-manager-all.yaml]
network:
version: 2
renderer: NetworkManager
##### iw reg get ########################
Region: Europe/Kiev (based on set time zone)
global
country 00: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 20), (N/A, 20), (N/A), AUTO-BW, NO-IR
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, NO-IR
(5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW, NO-IR
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW, 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 ###################
enp9s2 no frequency information.
lo no frequency information.
wlp9s4 12 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
##### iwlist scan #######################
enp9s2 Interface doesn't support scanning.
lo Interface doesn't support scanning.
wlp9s4 No scan results
##### module infos ######################
[ath5k]
filename: /lib/modules/4.14.0-041400-generic/kernel/drivers/net/wireless/ath/ath5k/ath5k.ko
license: Dual BSD/GPL
description: Support for 5xxx series of Atheros 802.11 wireless LAN cards.
author: Nick Kossifidis
author: Jiri Slaby
srcversion: 01FB964A002B27138405B3F
depends: mac80211,cfg80211,ath
intree: Y
name: ath5k
vermagic: 4.14.0-041400-generic SMP mod_unload 686
signat: PKCS#7
signer:
sig_key:
sig_hashalgo: md4
parm: nohwcrypt:Disable hardware encryption. (bool)
parm: fastchanswitch:Enable fast channel switching for AR2413/AR5413 radios. (bool)
parm: no_hw_rfkill_switch:Ignore the GPIO RFKill switch state (bool)
[ath]
filename: /lib/modules/4.14.0-041400-generic/kernel/drivers/net/wireless/ath/ath.ko
license: Dual BSD/GPL
description: Shared library for Atheros wireless LAN cards.
author: Atheros Communications
srcversion: 555BBBB9D4FCA58A05E7C0D
depends: cfg80211
intree: Y
name: ath
vermagic: 4.14.0-041400-generic SMP mod_unload 686
signat: PKCS#7
signer:
sig_key:
sig_hashalgo: md4
[mac80211]
filename: /lib/modules/4.14.0-041400-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: E427240664ACBE186C6AE39
depends: cfg80211
intree: Y
name: mac80211
vermagic: 4.14.0-041400-generic SMP mod_unload 686
signat: PKCS#7
signer:
sig_key:
sig_hashalgo: md4
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/4.14.0-041400-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 784748F60B5390682360B5B
depends:
intree: Y
name: cfg80211
vermagic: 4.14.0-041400-generic SMP mod_unload 686
signat: PKCS#7
signer:
sig_key:
sig_hashalgo: md4
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 #################
[ath5k]
fastchanswitch: N
nohwcrypt: Y
no_hw_rfkill_switch: N
[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/ath5k.conf]
options ath5k 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/custom-wireless.conf]
options ath5k nohwcrypt
[/etc/modprobe.d/intel-microcode-blacklist.conf]
blacklist microcode
[/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/libpisock9.conf]
blacklist visor
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
##### rc.local ##########################
grep: /etc/rc.local: No such file or directory
##### pm-utils ##########################
##### udev rules ########################
##### dmesg #############################
[ 22.047309] ath5k 0000:09:04.0: registered as 'phy0'
[ 22.718619] ath: EEPROM regdomain: 0x64
[ 22.718621] ath: EEPROM indicates we should expect a direct regpair map
[ 22.718626] ath: Country alpha2 being used: 00
[ 22.718627] ath: Regpair used: 0x64
[ 23.273690] ath5k: phy0: Atheros AR2413 chip found (MAC: 0x78, PHY: 0x45)
[ 29.996790] ath5k 0000:09:04.0 wlp9s4: renamed from wlan0
[ 35.776207] IPv6: ADDRCONF(NETDEV_UP): enp9s2: link is not ready
[ 35.776403] 8139too 0000:09:02.0 enp9s2: link down
[ 35.776761] IPv6: ADDRCONF(NETDEV_UP): enp9s2: link is not ready
[ 35.810796] IPv6: ADDRCONF(NETDEV_UP): wlp9s4: link is not ready (repeated 4 times)
########## wireless info END ############
答案1
- 我发现我的 wifi 网络使用的是“bgn”类型，而 wifi 卡仅支持“bg”。因此，首先，我在 usb wifi 路由器的 wifi 设置中更改了它。
- 我把加密类型改为仅 AES
- 我发现我的网络正在第 13 个频道上广播，而卡支持的频道较少（11 或 12，不记得了）。我将网络切换到第 11 个频道。
之后我的网络出现在连接菜单中。谢谢。我将感谢这篇文章下的任何补充评论，其中包含上述提示或更正，因为我在网络或 unix 方面都很菜鸟。也许并非所有要点都不需要做或更改。非常感谢您的提前帮助。
至少，这个案例对我来说是可行的。