我的下载和上传速度分别降至 0.5 mbps 和 1 mbps。它们应该在 43m 左右。我刚刚在第一代 yoga 13 上安装了 15.10。
我已尝试交换驱动程序并按照本文中的步骤操作：http://itsfoss.com/speed-up-slow-wifi-connection-ubuntu/
没有成功。
任何能解决这个问题的指导都将不胜感激。
网卡是Realtec rtl8723au：
########## wireless info START ##########
Report from: 10 Nov 2015 08:39 EST -0500
Booted last: 10 Nov 2015 00:00 EST -0500
Script from: 27 Sep 2015 00:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 15.10
Release: 15.10
Codename: wily
##### kernel ############################
Linux 4.2.0-17-generic #21-Ubuntu SMP Fri Oct 23 19:56:16 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
##### lsusb #############################
Bus 004 Device 004: ID 04f2:b322 Chicony Electronics Co., Ltd
Bus 004 Device 003: ID 2047:0855 Texas Instruments Invensense Embedded MotionApp HID Sensor
Bus 004 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 007: ID 04f3:000a Elan Microelectronics Corp. Touchscreen
Bus 003 Device 005: ID 0bda:1724 Realtek Semiconductor Corp. RTL8723AU 802.11n WLAN Adapter
Bus 003 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 003 Device 010: ID 046d:0825 Logitech, Inc. Webcam C270
Bus 003 Device 014: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 003 Device 013: ID 0d8c:0006 C-Media Electronics, Inc. Storm HP-USB500 5.1 Headset
Bus 003 Device 012: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port
Bus 003 Device 011: ID 067b:2305 Prolific Technology, Inc. PL2305 Parallel Port
Bus 003 Device 009: ID 0b95:7720 ASIX Electronics Corp. AX88772
Bus 003 Device 006: ID 0409:0059 NEC Corp. HighSpeed Hub
Bus 003 Device 003: ID 0409:0059 NEC Corp. HighSpeed Hub
Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
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 ############################
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### lsmod #############################
cfg80211 548864 1 r8723au
ideapad_laptop 24576 0
sparse_keymap 16384 1 ideapad_laptop
wmi 20480 0
video 36864 2 i915,ideapad_laptop
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
enx00505b04bdc5 Link encap:Ethernet HWaddr <MAC 'enx00505b04bdc5' [IF]>
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlx2016d810535b Link encap:Ethernet HWaddr <MAC 'wlx2016d810535b' [IF]>
inet addr:192.168.1.16 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::<IP6 'wlx2016d810535b' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1280 Metric:1
RX packets:68821 errors:0 dropped:544 overruns:0 frame:0
TX packets:63906 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:67449418 (67.4 MB) TX bytes:25194957 (25.1 MB)
##### iwconfig ##########################
enx00505b04bdc5 no wireless extensions.
lo no wireless extensions.
wlx2016d810535b IEEE 802.11abgn ESSID:"NETGEAR25"
Mode:Managed Frequency:2.437 GHz Access Point: <MAC 'NETGEAR25' [AC1]>
Bit Rate=150 Mb/s Tx-Power=12 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=61/70 Signal level=-49 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 600 0 0 wlx2016d810535b
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlx2016d810535b
192.168.1.0 0.0.0.0 255.255.255.0 U 600 0 0 wlx2016d810535b
##### resolv.conf #######################
nameserver 127.0.1.1
##### network managers ##################
Installed:
NetworkManager
Running:
root 798 1 0 Nov09 ? 00:00:18 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: wlx2016d810535b
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.VENDOR: Realtek
GENERAL.PRODUCT: 802.11n WLAN Adapter
GENERAL.DRIVER: rtl8723au
GENERAL.DRIVER-VERSION:
GENERAL.FIRMWARE-VERSION:
GENERAL.HWADDR: <MAC 'wlx2016d810535b' [IF]>
GENERAL.MTU: 0
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1a.0/usb3/3-1/3-1.4/3-1.4:1.2/net/wlx2016d810535b
GENERAL.IP-IFACE: wlx2016d810535b
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: NETGEAR25
GENERAL.CON-UUID: a335c441-86a3-4bff-82b0-a70bedd88d16
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/1
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: 150 Mb/s
CAPABILITIES.IS-SOFTWARE: 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: yes
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{0}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: a335c441-86a3-4bff-82b0-a70bedd88d16 | NETGEAR25
IP4.ADDRESS[1]: 192.168.1.16/24
IP4.GATEWAY: 192.168.1.1
IP4.ROUTE[1]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]: 192.168.1.1
DHCP4.OPTION[1]: requested_host_name = 1
DHCP4.OPTION[2]: requested_domain_search = 1
DHCP4.OPTION[3]: requested_broadcast_address = 1
DHCP4.OPTION[4]: requested_domain_name = 1
DHCP4.OPTION[5]: requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[6]: requested_time_offset = 1
DHCP4.OPTION[7]: expiry = 1447246421
DHCP4.OPTION[8]: requested_wpad = 1
DHCP4.OPTION[9]: next_server = 0.0.0.0
DHCP4.OPTION[10]: broadcast_address = 192.168.1.255
DHCP4.OPTION[11]: dhcp_message_type = 5
DHCP4.OPTION[12]: requested_subnet_mask = 1
DHCP4.OPTION[13]: routers = 192.168.1.1
DHCP4.OPTION[14]: dhcp_lease_time = 86400
DHCP4.OPTION[15]: ip_address = 192.168.1.16
DHCP4.OPTION[16]: requested_static_routes = 1
DHCP4.OPTION[17]: requested_interface_mtu = 1
DHCP4.OPTION[18]: requested_domain_name_servers = 1
DHCP4.OPTION[19]: domain_name_servers = 192.168.1.1
DHCP4.OPTION[20]: requested_netbios_scope = 1
DHCP4.OPTION[21]: requested_netbios_name_servers = 1
DHCP4.OPTION[22]: requested_ntp_servers = 1
DHCP4.OPTION[23]: requested_routers = 1
DHCP4.OPTION[24]: subnet_mask = 255.255.255.0
DHCP4.OPTION[25]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[26]: network_number = 192.168.1.0
DHCP4.OPTION[27]: dhcp_server_identifier = 192.168.1.1
IP6.ADDRESS[1]: fe80::<IP6 'wlx2016d810535b' [IF]>/64
IP6.GATEWAY:
GENERAL.DEVICE: enx00505b04bdc5
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.VENDOR: ASIX Elec. Corp.
GENERAL.PRODUCT: AX88772
GENERAL.DRIVER: asix
GENERAL.DRIVER-VERSION: 22-Dec-2011
GENERAL.FIRMWARE-VERSION: ASIX AX88772 USB 2.0 Ethernet
GENERAL.HWADDR: <MAC 'enx00505b04bdc5' [IF]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 2 (Device is now managed)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1a.0/usb3/3-1/3-1.2/3-1.2.1/3-1.2.1.1/3-1.2.1.1:1.0/net/enx00505b04bdc5
GENERAL.IP-IFACE:
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
WIRED-PROPERTIES.CARRIER: off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:
SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE *
NETGEAR25 <MAC 'NETGEAR25' [AC1]> Infra 6 2437 MHz 54 Mbit/s 70 ▂▄▆_ WPA2 yes *
sky n gus <MAC 'sky n gus' [AC6]> Infra 11 2462 MHz 54 Mbit/s 55 ▂▄__ WEP no
ATT680 <MAC 'ATT680' [AC5]> Infra 6 2437 MHz 54 Mbit/s 47 ▂▄__ WPA1 WPA2 no
-- <MAC '--' [AN4]> Infra 1 2412 MHz 54 Mbit/s 44 ▂▄__ WPA1 WPA2 no
HOME-B368 <MAC 'HOME-B368' [AC3]> Infra 1 2412 MHz 54 Mbit/s 45 ▂▄__ WPA1 WPA2 no
xfinitywifi <MAC 'xfinitywifi' [AN6]> Infra 11 2462 MHz 54 Mbit/s 29 ▂___ -- no
-- <MAC '--' [AN7]> Infra 11 2462 MHz 54 Mbit/s 30 ▂___ WPA2 no
fashionmadness <MAC 'fashionmadness' [AN8]> Infra 11 2462 MHz 54 Mbit/s 29 ▂___ WPA1 WPA2 no
xfinitywifi <MAC 'xfinitywifi' [AN9]> Infra 11 2462 MHz 54 Mbit/s 17 ▂___ -- no
-- <MAC '' [AC4]> Infra 1 2412 MHz 54 Mbit/s 45 ▂▄__ WPA2 no
-- <MAC '--' [AN11]> Infra 1 2412 MHz 54 Mbit/s 45 ▂▄__ WPA1 WPA2 no
Library of Alexandria <MAC 'Library of Alexandria' [AC2]> Infra 1 2412 MHz 54 Mbit/s 49 ▂▄__ WPA1 WPA2 no
baseball <MAC 'baseball' [AN13]> Infra 6 2437 MHz 54 Mbit/s 30 ▂___ WPA1 no
-- <MAC '\00\00\00\00\00\00\00\00\00\00\00\00' [AC7]> Infra 11 2462 MHz 54 Mbit/s 30 ▂___ WPA2 no
HOME-E7BE <MAC 'HOME-E7BE' [AN15]> Infra 11 2462 MHz 54 Mbit/s 30 ▂___ WPA1 WPA2 no
xfinitywifi <MAC 'xfinitywifi' [AC8]> Infra 11 2462 MHz 54 Mbit/s 29 ▂___ -- no
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/NETGEAR25]] (600 root)
[connection] id=NETGEAR25 | type=wifi | permissions=
[wifi] mac-address=<MAC 'wlx2016d810535b' [IF]> | mac-address-blacklist= | ssid=NETGEAR25
[ipv4] method=auto
[ipv6] method=auto
##### iw reg get ########################
Region: America/New_York (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 ###################
enx00505b04bdc5 no frequency information.
lo no frequency information.
wlx2016d810535b 32 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
Channel 13 : 2.472 GHz
Channel 14 : 2.484 GHz
Channel 36 : 5.18 GHz
Channel 38 : 5.19 GHz
Channel 40 : 5.2 GHz
Channel 42 : 5.21 GHz
Channel 44 : 5.22 GHz
Channel 46 : 5.23 GHz
Channel 48 : 5.24 GHz
Channel 52 : 5.26 GHz
Channel 56 : 5.28 GHz
Channel 60 : 5.3 GHz
Channel 64 : 5.32 GHz
Channel 100 : 5.5 GHz
Channel 104 : 5.52 GHz
Channel 108 : 5.54 GHz
Channel 112 : 5.56 GHz
Channel 116 : 5.58 GHz
Channel 120 : 5.6 GHz
Channel 124 : 5.62 GHz
Current Frequency:2.437 GHz (Channel 6)
##### iwlist scan #######################
enx00505b04bdc5 Interface doesn't support scanning.
lo Interface doesn't support scanning.
Channel occupancy:
3 APs on Frequency:2.412 GHz (Channel 1)
2 APs on Frequency:2.437 GHz (Channel 6)
3 APs on Frequency:2.462 GHz (Channel 11)
wlx2016d810535b Scan completed :
Cell 01 - Address: <MAC 'NETGEAR25' [AC1]>
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=61/70 Signal level=-49 dBm
Encryption key:on
ESSID:"NETGEAR25"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000001c88686921
Extra: Last beacon: 44ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 02 - Address: <MAC 'Library of Alexandria' [AC2]>
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=37/70 Signal level=-73 dBm
Encryption key:on
ESSID:"Library of Alexandria"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000001c8b768eed
Extra: Last beacon: 44ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 03 - Address: <MAC 'HOME-B368' [AC3]>
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=36/70 Signal level=-74 dBm
Encryption key:on
ESSID:"HOME-B368"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000001c89014169
Extra: Last beacon: 44ms ago
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Cell 04 - Address: <MAC '' [AC4]>
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=37/70 Signal level=-73 dBm
Encryption key:on
ESSID:""
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000001c89014b5a
Extra: Last beacon: 44ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 05 - Address: <MAC 'ATT680' [AC5]>
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=39/70 Signal level=-71 dBm
Encryption key:on
ESSID:"ATT680"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000000034790669
Extra: Last beacon: 44ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Cell 06 - Address: <MAC 'sky n gus' [AC6]>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=39/70 Signal level=-71 dBm
Encryption key:on
ESSID:"sky n gus"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000002f96ee46565
Extra: Last beacon: 44ms ago
Cell 07 - Address: <MAC '\00\00\00\00\00\00\00\00\00\00\00\00' [AC7]>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=28/70 Signal level=-82 dBm
Encryption key:on
ESSID:"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000001c7e72245f
Extra: Last beacon: 44ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 08 - Address: <MAC 'xfinitywifi' [AC8]>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=36/70 Signal level=-74 dBm
Encryption key:off
ESSID:"xfinitywifi"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000001c7e722b6e
Extra: Last beacon: 44ms ago
##### module infos ######################
[cfg80211]
filename: /lib/modules/4.2.0-17-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 1F1A25B2E9C847110BD9ED9
depends:
intree: Y
vermagic: 4.2.0-17-generic SMP mod_unload modversions
signer: Build time autogenerated kernel key
sig_key: 8A:A8:7E:56:80:81:D5:83:A1:82:B3:AF:48:3C:67:E7:4C:E0:9F:4E
sig_hashalgo: sha512
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 #################
[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
##### modprobe options ##################
[/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/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
options iwlwifi 11n_disable=1
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
##### rc.local ##########################
exit 0
##### pm-utils ##########################
##### udev rules ########################
grep: /etc/udev/rules.d/*net*.rules: No such file or directory
##### dmesg #############################
[ 9.043610] rtl8723au 3-1.4:1.2 wlx2016d810535b: renamed from wlan0
[ 9.261442] IPv6: ADDRCONF(NETDEV_UP): wlx2016d810535b: link is not ready
[ 9.331654] rtl8723au: Loading firmware rtlwifi/rtl8723aufw_B.bin
[ 9.849921] IPv6: ADDRCONF(NETDEV_UP): wlx2016d810535b: link is not ready (repeated 3 times)
[ 10.549926] asix 3-1.2.1.1:1.0 eth0: register 'asix' at usb-0000:00:1a.0-1.2.1.1, ASIX AX88772 USB 2.0 Ethernet, <MAC 'enx00505b04bdc5' [IF]>
[ 10.552149] asix 3-1.2.1.1:1.0 enx00505b04bdc5: renamed from eth0
[ 10.574751] IPv6: ADDRCONF(NETDEV_UP): enx00505b04bdc5: link is not ready
[ 10.576961] asix 3-1.2.1.1:1.0 enx00505b04bdc5: link down
[ 10.578257] IPv6: ADDRCONF(NETDEV_UP): enx00505b04bdc5: link is not ready
[ 11.330157] IPv6: ADDRCONF(NETDEV_CHANGE): wlx2016d810535b: link becomes ready
[ 1310.905233] Error: Driver 'rtl8723au' is already registered, aborting... (repeated 3 times)
[ 1747.568148] IPv6: ADDRCONF(NETDEV_UP): wlx2016d810535b: link is not ready (repeated 2 times)
[ 1747.568973] IPv6: ADDRCONF(NETDEV_UP): enx00505b04bdc5: link is not ready
[ 1747.569740] asix 3-1.2.1.1:1.0 enx00505b04bdc5: link down
[ 1747.571165] IPv6: ADDRCONF(NETDEV_UP): enx00505b04bdc5: link is not ready
[ 1747.611391] IPv6: ADDRCONF(NETDEV_UP): wlx2016d810535b: link is not ready
[ 1747.682975] rtl8723au: Loading firmware rtlwifi/rtl8723aufw_B.bin
[ 1749.457435] IPv6: ADDRCONF(NETDEV_CHANGE): wlx2016d810535b: link becomes ready
[35174.297977] Error: Driver 'rtl8723au' is already registered, aborting...
########## wireless info END ############
答案1
几次完全电源循环帮我解决了这个问题（完全关闭电源！不是重新启动/重置）。重新启动并没有解决我的问题。
我遇到问题的驱动程序是 Larry Finger 提供的此无线网卡的原始驱动程序（并添加到 Linux 内核）。当前驱动程序维护者 Jes Sorensen 表示，该驱动程序可能无法正确启动芯片/它可能不完全了解正确的电源顺序。
当前维护者说你可以尝试他的新驱动程序 rtl8xxxu。据我所知，它还不是 Linux 版本的一部分，但他给了我一个指向他的内核分支的链接，如果你想编译它并尝试一下：http://git.kernel.org/cgit/linux/kernel/git/jes/linux.git/log/?h=rtl8723au-mac80211（您可以在日志中看到他在 2015 年 10 月 14 日添加了 rtl8xxxu）它应该在即将发布的版本之一中。
我懒得编译内核，而且当网速下降时我只能关闭电源然后再打开电源。