我有一台联想 Y700 笔记本电脑，安装了 Ubuntu 16.04 LTS，但 Wifi 出现了问题。
无线连接看起来不错，但有时我无法连接到互联网。为了解决这个问题，我这样做...
service network-manager restart
它工作了几分钟，但后来又出现了同样的问题，我不得不一次又一次地重新启动，这真的很烦人。
我尝试了给出的解决方案在这个类似的问题中但问题仍然存在。
这是我的电脑的信息...
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 16.04.1 LTS
Release: 16.04
Codename: xenial
##### kernel ############################
Linux 4.4.0-57-generic #78-Ubuntu SMP Fri Dec 9 23:50:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
Subsystem: Lenovo RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [17aa:3832]
Kernel driver in use: r8169
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter [10ec:8821]
Subsystem: Lenovo RTL8821AE 802.11ac PCIe Wireless Network Adapter [17aa:a814]
Kernel driver in use: rtl8821ae
##### lsusb #############################
Bus 001 Device 004: ID 0bda:0821 Realtek Semiconductor Corp.
Bus 001 Device 003: ID 04f2:b512 Chicony Electronics Co., Ltd
Bus 001 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 0480:a006 Toshiba America Inc External Disk 1.5TB
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
##### lsmod #############################
rtl8821ae 225280 0
btcoexist 53248 1 rtl8821ae
rtl_pci 28672 1 rtl8821ae
rtlwifi 77824 2 rtl_pci,rtl8821ae
mac80211 737280 3 rtl_pci,rtlwifi,rtl8821ae
cfg80211 565248 2 mac80211,rtlwifi
wmi 20480 0
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
enp1s0 Link encap:Ethernet HWaddr <MAC 'enp1s0' [IF1]>
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)
wlp2s0 Link encap:Ethernet HWaddr <MAC 'wlp2s0' [IF2]>
inet addr:192.168.178.45 Bcast:192.168.178.255 Mask:255.255.255.0
inet6 addr: fe80::d4e4:4af1:7b11:9187/64 Scope:Link
inet6 addr: 2003:86:6676:2d00:c28c:48ef:cfeb:a014/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:11509 errors:0 dropped:0 overruns:0 frame:0
TX packets:10836 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6457711 (6.4 MB) TX bytes:1833640 (1.8 MB)
##### iwconfig ##########################
lo no wireless extensions.
enp1s0 no wireless extensions.
wlp2s0 IEEE 802.11abgn ESSID:"FRITZ!Box 7362 SL"
Mode:Managed Frequency:2.412 GHz Access Point: <MAC 'FRITZ!Box 7362 SL' [AN5]>
Bit Rate=72.2 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=70/70 Signal level=-40 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:2 Missed beacon:0
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.178.1 0.0.0.0 UG 600 0 0 wlp2s0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlp2s0
192.168.178.0 0.0.0.0 255.255.255.0 U 600 0 0 wlp2s0
##### resolv.conf #######################
nameserver 127.0.1.1
search fritz.box
##### network managers ##################
Installed:
NetworkManager
Running:
root 3742 1 1 01:01 ? 00:00:04 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: wlp2s0
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.VENDOR: Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT: RTL8821AE 802.11ac PCIe Wireless Network Adapter
GENERAL.DRIVER: rtl8821ae
GENERAL.DRIVER-VERSION: 4.4.0-57-generic
GENERAL.FIRMWARE-VERSION: N/A
GENERAL.HWADDR: <MAC 'wlp2s0' [IF2]>
GENERAL.MTU: 0
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:02.3/0000:02:00.0/net/wlp2s0
GENERAL.IP-IFACE: wlp2s0
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: FRITZ!Box 7362 SL
GENERAL.CON-UUID: ac016a1a-695a-461b-adf1-cfb7dc169115
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/0
GENERAL.METERED: no (guessed)
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: 72 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]: ac016a1a-695a-461b-adf1-cfb7dc169115 | FRITZ!Box 7362 SL
IP4.ADDRESS[1]: 192.168.178.45/24
IP4.GATEWAY: 192.168.178.1
IP4.ROUTE[1]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]: 192.168.178.1
IP4.DOMAIN[1]: fritz.box
DHCP4.OPTION[1]: requested_subnet_mask = 1
DHCP4.OPTION[2]: requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[3]: subnet_mask = 255.255.255.0
DHCP4.OPTION[4]: domain_name_servers = 192.168.178.1
DHCP4.OPTION[5]: ip_address = 192.168.178.45
DHCP4.OPTION[6]: requested_static_routes = 1
DHCP4.OPTION[7]: dhcp_server_identifier = 192.168.178.1
DHCP4.OPTION[8]: requested_time_offset = 1
DHCP4.OPTION[9]: broadcast_address = 192.168.178.255
DHCP4.OPTION[10]: requested_interface_mtu = 1
DHCP4.OPTION[11]: dhcp_rebinding_time = 756000
DHCP4.OPTION[12]: requested_domain_name_servers = 1
DHCP4.OPTION[13]: dhcp_message_type = 5
DHCP4.OPTION[14]: requested_broadcast_address = 1
DHCP4.OPTION[15]: routers = 192.168.178.1
DHCP4.OPTION[16]: dhcp_renewal_time = 432000
DHCP4.OPTION[17]: requested_domain_name = 1
DHCP4.OPTION[18]: domain_name = fritz.box
DHCP4.OPTION[19]: requested_routers = 1
DHCP4.OPTION[20]: expiry = 1484265694
DHCP4.OPTION[21]: requested_wpad = 1
DHCP4.OPTION[22]: requested_netbios_scope = 1
DHCP4.OPTION[23]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[24]: requested_netbios_name_servers = 1
DHCP4.OPTION[25]: network_number = 192.168.178.0
DHCP4.OPTION[26]: requested_domain_search = 1
DHCP4.OPTION[27]: next_server = 192.168.178.1
DHCP4.OPTION[28]: ntp_servers = 192.168.178.1
DHCP4.OPTION[29]: requested_host_name = 1
DHCP4.OPTION[30]: dhcp_lease_time = 864000
DHCP4.OPTION[31]: requested_ntp_servers = 1
IP6.ADDRESS[1]: 2003:86:6676:2d00:c28c:48ef:cfeb:a014/64
IP6.ADDRESS[2]: fe80::d4e4:4af1:7b11:9187/64
IP6.GATEWAY: fe80::3a10:d5ff:fe44:ca0b
IP6.ROUTE[1]: dst = 2003:86:6676:2d00::/64, nh = fe80::3a10:d5ff:fe44:ca0b, mt = 600
IP6.DNS[1]: fd00::3a10:d5ff:fe44:ca0b
DHCP6.OPTION[1]: requested_dhcp6_domain_search = 1
DHCP6.OPTION[2]: dhcp6_name_servers = fd00::3a10:d5ff:fe44:ca0b
DHCP6.OPTION[3]: dhcp6_server_id = 0:3:0:1:38:10:d5:44:ca:b
DHCP6.OPTION[4]: requested_dhcp6_client_id = 1
DHCP6.OPTION[5]: requested_dhcp6_name_servers = 1
DHCP6.OPTION[6]: dhcp6_client_id = 0:4:1e:50:81:97:69:9e:72:c:35:a0:90:82:3a:bb:f6:fd
GENERAL.DEVICE: enp1s0
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: rtl8168h-2_0.0.2 02/26/15
GENERAL.HWADDR: <MAC 'enp1s0' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 2 (Device is now managed)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:02.2/0000:01:00.0/net/enp1s0
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
WIRED-PROPERTIES.CARRIER: off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:
SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE *
DIRECT-A6-HP OfficeJet 3830 <MAC 'DIRECT-A6-HP OfficeJet 3830' [AN1]> Infra 1 2412 MHz 54 Mbit/s 89 ▂▄▆█ WPA2 no
HITRON-CAE0 <MAC 'HITRON-CAE0' [AN2]> Infra 6 2437 MHz 54 Mbit/s 87 ▂▄▆█ WPA1 WPA2 no
Vodafone Homespot <MAC 'Vodafone Homespot' [AN3]> Infra 6 2437 MHz 54 Mbit/s 87 ▂▄▆█ -- no
Vodafone Hotspot <MAC 'Vodafone Hotspot' [AN4]> Infra 6 2437 MHz 54 Mbit/s 87 ▂▄▆█ -- no
FRITZ!Box 7362 SL <MAC 'FRITZ!Box 7362 SL' [AN5]> Infra 1 2412 MHz 54 Mbit/s 82 ▂▄▆█ WPA2 yes *
WLAN-34FF25 <MAC 'WLAN-34FF25' [AN6]> Infra 1 2412 MHz 54 Mbit/s 80 ▂▄▆_ WPA2 no
Vodafone Hotspot <MAC 'Vodafone Hotspot' [AN7]> Infra 1 2412 MHz 54 Mbit/s 57 ▂▄▆_ -- no
KDG-879CF <MAC 'KDG-879CF' [AN8]> Infra 1 2412 MHz 54 Mbit/s 54 ▂▄__ WPA1 WPA2 no
KD-WLAN-9154 AO <MAC 'KD-WLAN-9154 AO' [AN9]> Infra 1 2412 MHz 54 Mbit/s 47 ▂▄__ WPA1 WPA2 no
FRITZ!Box Fon WLAN 7360 <MAC 'FRITZ!Box Fon WLAN 7360' [AN10]> Infra 1 2412 MHz 54 Mbit/s 47 ▂▄__ WPA1 WPA2 no
FRITZ!Box 7330 <MAC 'FRITZ!Box 7330' [AN11]> Infra 1 2412 MHz 54 Mbit/s 47 ▂▄__ WPA1 WPA2 no
Vodafone Hotspot <MAC 'Vodafone Hotspot' [AN12]> Infra 1 2412 MHz 54 Mbit/s 44 ▂▄__ -- no
KabelBox-FEE0 <MAC 'KabelBox-FEE0' [AN13]> Infra 1 2412 MHz 54 Mbit/s 44 ▂▄__ WPA2 no
KDG-C6833 <MAC 'KDG-C6833' [AN14]> Infra 1 2412 MHz 54 Mbit/s 40 ▂▄__ WPA1 WPA2 no
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/FRITZ!Box 7362 SL]] (600 root)
[connection] id=FRITZ!Box 7362 SL | type=wifi | permissions=
[wifi] mac-address=<MAC 'wlp2s0' [IF2]> | mac-address-blacklist= | ssid=FRITZ!Box 7362 SL
[ipv4] method=auto
[ipv6] method=auto
##### iw reg get ########################
Region: Europe/Berlin (based on set time zone)
country DE: DFS-ETSI
(2400 - 2483 @ 40), (N/A, 20), (N/A)
(5150 - 5250 @ 80), (N/A, 20), (N/A), NO-OUTDOOR
(5250 - 5350 @ 80), (N/A, 20), (0 ms), NO-OUTDOOR, DFS
(5470 - 5725 @ 160), (N/A, 26), (0 ms), DFS
(57000 - 66000 @ 2160), (N/A, 40), (N/A)
##### iwlist channels ###################
lo no frequency information.
enp1s0 no frequency information.
wlp2s0 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 36 : 5.18 GHz
Channel 40 : 5.2 GHz
Channel 44 : 5.22 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
Channel 128 : 5.64 GHz
Channel 132 : 5.66 GHz
Channel 136 : 5.68 GHz
Channel 140 : 5.7 GHz
Current Frequency:2.412 GHz (Channel 1)
##### iwlist scan #######################
lo Interface doesn't support scanning.
enp1s0 Interface doesn't support scanning.
wlp2s0 Interface doesn't support scanning : Device or resource busy
##### module infos ######################
[rtl8821ae]
filename: /lib/modules/4.4.0-57-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/rtl8821ae.ko
firmware: rtlwifi/rtl8821aefw.bin
description: Realtek 8821ae 802.11ac PCI wireless
license: GPL
author: Realtek WlanFAE <[email protected]>
srcversion: B9E24DCC76240A48AEEF94E
depends: rtlwifi,rtl_pci,btcoexist,mac80211
intree: Y
vermagic: 4.4.0-57-generic SMP mod_unload modversions
parm: swenc:Set to 1 for software crypto (default 0)
(bool)
parm: ips:Set to 0 to not use link power save (default 1)
(bool)
parm: swlps:Set to 1 to use SW control power save (default 0)
(bool)
parm: fwlps:Set to 1 to use FW control power save (default 1)
(bool)
parm: msi:Set to 1 to use MSI interrupts mode (default 1)
(bool)
parm: debug:Set debug level (0-5) (default 0) (int)
parm: disable_watchdog:Set to 1 to disable the watchdog (default 0)
(bool)
parm: int_clear:Set to 0 to disable interrupt clear before set (default 1)
(bool)
[rtl_pci]
filename: /lib/modules/4.4.0-57-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtl_pci.ko
description: PCI basic driver for rtlwifi
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
author: lizhaoming <[email protected]>
srcversion: A96EBF28EBD4603749D5EC3
depends: mac80211,rtlwifi
intree: Y
vermagic: 4.4.0-57-generic SMP mod_unload modversions
[rtlwifi]
filename: /lib/modules/4.4.0-57-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtlwifi.ko
description: Realtek 802.11n PCI wireless core
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
author: lizhaoming <[email protected]>
srcversion: 81DBE78DD4871E3EC5F2E9D
depends: mac80211,cfg80211
intree: Y
vermagic: 4.4.0-57-generic SMP mod_unload modversions
[mac80211]
filename: /lib/modules/4.4.0-57-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: 0B114888238BEBBE8043BC5
depends: cfg80211
intree: Y
vermagic: 4.4.0-57-generic SMP mod_unload modversions
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/4.4.0-57-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: FD4B9DA2F385F0531B5CB0B
depends:
intree: Y
vermagic: 4.4.0-57-generic SMP mod_unload modversions
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 #################
[rtl8821ae]
debug: 0
disable_watchdog: N
fwlps: N
int_clear: Y
ips: Y
msi: Y
swenc: N
swlps: 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]
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
blacklist ideapad-laptop
[/etc/modprobe.d/blacklist-ideapad.conf]
blacklist ideapad_laptop
[/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/libopenni-sensor-pointclouds0.conf]
blacklist gspca_kinect
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
[/etc/modprobe.d/rtl8821ae.conf]
options rtl8821ae fwlps=N
##### rc.local ##########################
exit 0
##### pm-utils ##########################
[/etc/pm/config.d/config] (644 root)
SUSPEND_MODULES="rtl8821ae"
##### udev rules ########################
##### dmesg #############################
[ 580.057551] wlp2s0: RX AssocResp from <MAC 'FRITZ!Box 7362 SL' [AN5]> (capab=0x431 status=0 aid=5)
[ 580.148045] wlp2s0: associated
[ 2172.369033] wlp2s0: Connection to AP <MAC 'FRITZ!Box 7362 SL' [AN5]> lost
[ 2175.368524] wlp2s0: authenticate with <MAC 'FRITZ!Box 7362 SL' [AN5]>
[ 2175.368931] wlp2s0: send auth to <MAC 'FRITZ!Box 7362 SL' [AN5]> (try 1/3)
[ 2175.471452] wlp2s0: send auth to <MAC 'FRITZ!Box 7362 SL' [AN5]> (try 2/3)
[ 2175.575371] wlp2s0: send auth to <MAC 'FRITZ!Box 7362 SL' [AN5]> (try 3/3)
[ 2175.679419] wlp2s0: authentication with <MAC 'FRITZ!Box 7362 SL' [AN5]> timed out
[ 2188.195594] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready (repeated 4 times)
[ 2876.994331] IPv6: ADDRCONF(NETDEV_UP): enp1s0: link is not ready
[ 2877.010288] r8169 0000:01:00.0 enp1s0: link down
[ 2877.010405] IPv6: ADDRCONF(NETDEV_UP): enp1s0: link is not ready
[ 2877.105114] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[ 2880.173762] wlp2s0: authenticate with <MAC 'FRITZ!Box 7362 SL' [AN5]>
[ 2880.177260] wlp2s0: send auth to <MAC 'FRITZ!Box 7362 SL' [AN5]> (try 1/3)
[ 2880.191121] wlp2s0: authenticated
[ 2880.195454] wlp2s0: associate with <MAC 'FRITZ!Box 7362 SL' [AN5]> (try 1/3)
[ 2880.204365] wlp2s0: RX AssocResp from <MAC 'FRITZ!Box 7362 SL' [AN5]> (capab=0x431 status=0 aid=7)
[ 2880.264011] wlp2s0: associated
[ 2880.264042] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
[ 3241.188389] wlp2s0: deauthenticating from <MAC 'FRITZ!Box 7362 SL' [AN5]> by local choice (Reason: 3=DEAUTH_LEAVING)
[ 3261.305400] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[ 3261.311629] IPv6: ADDRCONF(NETDEV_UP): enp1s0: link is not ready
[ 3261.327516] r8169 0000:01:00.0 enp1s0: link down
[ 3261.327692] IPv6: ADDRCONF(NETDEV_UP): enp1s0: link is not ready
[ 3261.448825] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[ 3274.151447] wlp2s0: authenticate with <MAC 'FRITZ!Box 7362 SL' [AN5]>
[ 3278.916185] wlp2s0: send auth to <MAC 'FRITZ!Box 7362 SL' [AN5]> (try 1/3)
[ 3278.926662] wlp2s0: authenticated
[ 3278.928265] wlp2s0: associate with <MAC 'FRITZ!Box 7362 SL' [AN5]> (try 1/3)
[ 3278.941799] wlp2s0: RX AssocResp from <MAC 'FRITZ!Box 7362 SL' [AN5]> (capab=0x431 status=0 aid=5)
[ 3279.050669] wlp2s0: associated
[ 3279.050732] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
########## wireless info END ############
非常感谢。
答案1
我建议您在网络管理器中禁用省电功能。从终端：
sudo sed -i 's/wifi.powersave = 3/wifi.powersave = 2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
接下来，检查路由器中的设置。首选 WPA2-AES；而不是任何 WPA 和 WPA2 混合模式，当然也不是 TKIP。其次，如果您的路由器支持 N 速度，那么使用 2.4 GHz 频段的 20 MHz 信道宽度（而不是自动 20/40 MHz）可能会获得更好的连接性，尽管它可能会影响 N 速度。我也更喜欢使用固定信道（1、6 或 11），而不是自动信道选择。此外，请确保路由器未设置为仅使用 N 速度；首选自动 B、G 和 N。
事实上，在你提交的数据中，我们看到十网络（包括您连接的网络）的信道为 1。对于您而言，我建议信道为 6 或 12，不是1.
重新启动路由器并让我们听取您的报告。
如果此方法无效或仅部分有效，则安装更好的驱动程序
sudo add-apt-repository ppa:hanipouspilot/rtlwifi
sudo apt-get update
sudo apt-get install rtlwifi-new-dkms
重新启动并告诉我们连接性是否得到改善。