我已经从 Ubuntu 18.04 升级到 20.04，我的笔记本电脑停止连接之前连接过的一些 Wi-fi 网络，但可以继续正常连接到其他网络。
无法连接网络（HH40V_2014更多信息）：它启动connecting后，过一会儿就会要求输入密码，我提供了正确的密码，但一直输入connecting，最后它还是会再次询问。
连接网络（CheckVienna free WiFi更多信息）：它与之前 18.04 上的连接一样正常。
我从无线信息脚本获得的信息（基于https://askubuntu.com/a/425205/471632)：
########## wireless info START ##########
Report from: 25 May 2021 17:06 CEST +0200
Booted last: 25 May 2021 00:00 CEST +0200
Script from: 25 Jan 2020 03:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 20.04.2 LTS
Release: 20.04
Codename: focal
##### kernel ############################
Linux 5.4.0-73-generic #82-Ubuntu SMP Wed Apr 14 17:39:42 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
01:00.0 Network controller [0280]: Intel Corporation Wireless 7265 [8086:095a] (rev 48)
Subsystem: Intel Corporation Dual Band Wireless-AC 7265 [8086:5010]
Kernel driver in use: iwlwifi
##### lsusb #############################
Bus 001 Device 002: ID 8087:8001 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 008: ID 04f2:b469 Chicony Electronics Co., Ltd HD WebCam
Bus 002 Device 007: ID 06cb:7680 Synaptics, Inc. Synaptics Touch Digitizer V04
Bus 002 Device 030: ID 2717:ff80 Xiaomi Inc. Mi/Redmi series (RNDIS)
Bus 002 Device 003: ID 1bcf:0005 Sunplus Innovation Technology Inc. Optical Mouse
Bus 002 Device 004: ID 05ac:0221 Apple, Inc. Aluminum Keyboard (ISO)
Bus 002 Device 002: ID 05ac:1006 Apple, Inc. Hub in Aluminum Keyboard
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: acer-wireless: Wireless LAN
Soft blocked: no
Hard blocked: no
2: acer-bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### secure boot #######################
SecureBoot disabled
##### lsmod #############################
wmi_bmof 16384 0
iwlmvm 380928 0
mac80211 847872 1 iwlmvm
acer_wmi 24576 0
libarc4 16384 1 mac80211
iwlwifi 331776 1 iwlmvm
cfg80211 704512 3 iwlmvm,iwlwifi,mac80211
sparse_keymap 16384 2 acer_wmi,intel_vbtn
video 49152 2 acer_wmi,i915
wmi 32768 2 acer_wmi,wmi_bmof
##### interfaces ########################
[/etc/network/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 <MAC address>
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: wlp1s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether <MAC 'wlp1s0' [IF1]> brd <MAC address>
inet6 fe80::f11:ac07:b9e:4d60/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether <MAC 'docker0' [IF2]> brd <MAC address>
inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
valid_lft forever preferred_lft forever
11: usb0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000
link/ether <MAC 'usb0' [IF3]> brd <MAC address>
inet 192.168.42.9/24 brd 192.168.42.255 scope global dynamic noprefixroute usb0
valid_lft 2925sec preferred_lft 2925sec
inet6 fe80::e507:5b67:4045:7c5f/64 scope link noprefixroute
valid_lft forever preferred_lft forever
##### iwconfig ##########################
docker0 no wireless extensions.
usb0 no wireless extensions.
lo no wireless extensions.
wlp1s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=22 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
##### route #############################
default via 192.168.42.129 dev usb0 proto dhcp metric 100
169.254.0.0/16 dev docker0 scope link metric 1000 linkdown
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
192.168.42.0/24 dev usb0 proto kernel scope link src 192.168.42.9 metric 100
##### resolv.conf #######################
[777 root '/etc/resolv.conf' -> '../run/resolvconf/resolv.conf']
nameserver 127.0.0.53
search lan
##### network managers ##################
Installed:
NetworkManager
Running:
root 1290 1 0 May24 ? 00:01:24 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: usb0
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.DBUS-PATH: /org/freedesktop/NetworkManager/Devices/12
GENERAL.VENDOR: Xiaomi Inc.
GENERAL.PRODUCT: Mi/Redmi series (RNDIS)
GENERAL.DRIVER: rndis_host
GENERAL.DRIVER-VERSION: 22-Aug-2005
GENERAL.FIRMWARE-VERSION: RNDIS device
GENERAL.HWADDR: <MAC 'usb0' [IF3]>
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.IP4-CONNECTIVITY: 4 (full)
GENERAL.IP6-CONNECTIVITY: 4 (full)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4:1.0/net/usb0
GENERAL.IP-IFACE: usb0
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: Ethernet connection 1
GENERAL.CON-UUID: 214f6339-8377-4d3b-bd17-3b6fb19f4570
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/37
GENERAL.METERED: yes (guessed)
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
CAPABILITIES.SRIOV: no
INTERFACE-FLAGS.UP: yes
INTERFACE-FLAGS.LOWER-UP: yes
INTERFACE-FLAGS.CARRIER: yes
WIRED-PROPERTIES.CARRIER: on
IP4.ADDRESS[1]: 192.168.42.9/24
IP4.GATEWAY: 192.168.42.129
IP4.ROUTE[1]: dst = 0.0.0.0/0, nh = 192.168.42.129, mt = 100
IP4.ROUTE[2]: dst = 192.168.42.0/24, nh = 0.0.0.0, mt = 100
IP4.DNS[1]: 192.168.42.129
DHCP4.OPTION[1]: dhcp_lease_time = 3600
DHCP4.OPTION[2]: domain_name_servers = 192.168.42.129
DHCP4.OPTION[3]: expiry = 1621958088
DHCP4.OPTION[4]: host_name = sloup
DHCP4.OPTION[5]: ip_address = 192.168.42.9
DHCP4.OPTION[6]: next_server = 192.168.42.129
DHCP4.OPTION[7]: requested_broadcast_address = 1
DHCP4.OPTION[8]: requested_domain_name = 1
DHCP4.OPTION[9]: requested_domain_name_servers = 1
DHCP4.OPTION[10]: requested_domain_search = 1
DHCP4.OPTION[11]: requested_host_name = 1
DHCP4.OPTION[12]: requested_interface_mtu = 1
DHCP4.OPTION[13]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[14]: requested_nis_domain = 1
DHCP4.OPTION[15]: requested_nis_servers = 1
DHCP4.OPTION[16]: requested_ntp_servers = 1
DHCP4.OPTION[17]: requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[18]: requested_root_path = 1
DHCP4.OPTION[19]: requested_routers = 1
DHCP4.OPTION[20]: requested_static_routes = 1
DHCP4.OPTION[21]: requested_subnet_mask = 1
DHCP4.OPTION[22]: requested_time_offset = 1
DHCP4.OPTION[23]: requested_wpad = 1
DHCP4.OPTION[24]: routers = 192.168.42.129
DHCP4.OPTION[25]: subnet_mask = 255.255.255.0
IP6.ADDRESS[1]: fe80::e507:5b67:4045:7c5f/64
IP6.GATEWAY: --
IP6.ROUTE[1]: dst = fe80::/64, nh = ::, mt = 100
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/112
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 214f6339-8377-4d3b-bd17-3b6fb19f4570 | Ethernet connection 1
GENERAL.DEVICE: docker0
GENERAL.TYPE: bridge
GENERAL.NM-TYPE: NMDeviceBridge
GENERAL.DBUS-PATH: /org/freedesktop/NetworkManager/Devices/4
GENERAL.VENDOR: --
GENERAL.PRODUCT: --
GENERAL.DRIVER: bridge
GENERAL.DRIVER-VERSION: 2.3
GENERAL.FIRMWARE-VERSION: N/A
GENERAL.HWADDR: <MAC 'docker0' [IF2]>
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.IP4-CONNECTIVITY: 3 (limited)
GENERAL.IP6-CONNECTIVITY: 3 (limited)
GENERAL.UDI: /sys/devices/virtual/net/docker0
GENERAL.IP-IFACE: docker0
GENERAL.IS-SOFTWARE: yes
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: docker0
GENERAL.CON-UUID: f1225fe4-0a5b-4445-8272-326484a294aa
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/2
GENERAL.METERED: no (guessed)
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: yes
CAPABILITIES.SRIOV: no
INTERFACE-FLAGS.UP: yes
INTERFACE-FLAGS.LOWER-UP: no
INTERFACE-FLAGS.CARRIER: no
IP4.ADDRESS[1]: 172.17.0.1/16
IP4.GATEWAY: --
IP4.ROUTE[1]: dst = 172.17.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[2]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP6.GATEWAY: --
BRIDGE.SLAVES: --
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/135
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: f1225fe4-0a5b-4445-8272-326484a294aa | docker0
GENERAL.DEVICE: wlp1s0
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.DBUS-PATH: /org/freedesktop/NetworkManager/Devices/2
GENERAL.VENDOR: Intel Corporation
GENERAL.PRODUCT: Wireless 7265 (Dual Band Wireless-AC 7265)
GENERAL.DRIVER: iwlwifi
GENERAL.DRIVER-VERSION: 5.4.0-73-generic
GENERAL.FIRMWARE-VERSION: 17.3216344376.0
GENERAL.HWADDR: <MAC 'wlp1s0' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 70 (connecting (getting IP configuration))
GENERAL.REASON: 0 (No reason given)
GENERAL.IP4-CONNECTIVITY: 1 (none)
GENERAL.IP6-CONNECTIVITY: 1 (none)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0/net/wlp1s0
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: CheckVienna free WiFi
GENERAL.CON-UUID: 5e8dcbf2-f1dc-4126-b8f4-284c02717f21
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/40
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: 6 Mb/s
CAPABILITIES.IS-SOFTWARE: no
CAPABILITIES.SRIOV: no
INTERFACE-FLAGS.UP: yes
INTERFACE-FLAGS.LOWER-UP: no
INTERFACE-FLAGS.CARRIER: 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
WIFI-PROPERTIES.MESH: no
WIFI-PROPERTIES.IBSS-RSN: yes
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/56,/org/freedesktop/NetworkManager/Settings/72,/org/freedesktop/NetworkManager/Settings/114
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 3e1a6d31-fb6f-49c1-960d-aaa0b6661705 | Ubuntu
CONNECTIONS.AVAILABLE-CONNECTIONS[2]: 8299c059-44dd-47a9-b80f-bda6b69dc2af | HH40V_2014
CONNECTIONS.AVAILABLE-CONNECTIONS[3]: 5e8dcbf2-f1dc-4126-b8f4-284c02717f21 | CheckVienna free WiFi
GENERAL.DEVICE: p2p-dev-wlp1s0
GENERAL.TYPE: wifi-p2p
GENERAL.NM-TYPE: NMDeviceWifiP2P
GENERAL.DBUS-PATH: /org/freedesktop/NetworkManager/Devices/3
GENERAL.VENDOR: --
GENERAL.PRODUCT: --
GENERAL.DRIVER: (unknown)
GENERAL.DRIVER-VERSION: --
GENERAL.FIRMWARE-VERSION: --
GENERAL.HWADDR: (unknown)
GENERAL.MTU: 0
GENERAL.STATE: 30 (disconnected)
GENERAL.REASON: 0 (No reason given)
GENERAL.IP4-CONNECTIVITY: 1 (none)
GENERAL.IP6-CONNECTIVITY: 1 (none)
GENERAL.UDI: /virtual/device/placeholder/0
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
INTERFACE-FLAGS.UP: no
INTERFACE-FLAGS.LOWER-UP: no
INTERFACE-FLAGS.CARRIER: no
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: --
SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE IN-USE
HH40V_2014 <MAC 'HH40V_2014' [AC1]> Infra 8 2447 MHz 130 Mbit/s 69 ▂▄▆_ WPA2 no
CheckVienna free WiFi <MAC 'CheckVienna free WiFi' [AN2]> Infra 36 5180 MHz 270 Mbit/s 9 ▂___ -- no
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager config #############
[[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]]
[connection]
wifi.powersave = 3
[[/etc/NetworkManager/NetworkManager.conf]]
[main]
plugins=ifupdown,keyfile
[ifupdown]
managed=false
[device]
wifi.scan-rand-mac-address=no
[[/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf]]
[main]
dns=systemd-resolved
[[/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf]]
[keyfile]
unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma
[[/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf]]
[device-mac-addr-change-wifi]
match-device=driver:rtl8723bs,driver:rtl8189es,driver:r8188eu,driver:8188eu,driver:eagle_sdio,driver:wl
wifi.scan-rand-mac-address=no
##### NetworkManager profiles ###########
[Deleted, containing personal info + too long for a question here]
##### Netplan config ####################
##### iw reg get ########################
Region: Europe/Berlin (based on set time zone)
global
country 00: DFS-UNSET
(2402 - 2472 @ 40), (6, 20), (N/A)
(2457 - 2482 @ 20), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, PASSIVE-SCAN
(5170 - 5250 @ 80), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(5250 - 5330 @ 80), (6, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN
(5490 - 5730 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN
(5735 - 5835 @ 80), (6, 20), (N/A), PASSIVE-SCAN
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
##### iwlist channels ###################
docker0 no frequency information.
usb0 no frequency information.
lo no frequency information.
wlp1s0 32 channels in total; available frequencies :
[Deleted, too long for a question here]
##### iwlist scan #######################
docker0 Interface doesn't support scanning.
usb0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
Channel occupancy:
1 APs on Frequency:2.447 GHz (Channel 8)
wlp1s0 Scan completed :
Cell 01 - Address: <MAC 'HH40V_2014' [AC1]>
Channel:8
Frequency:2.447 GHz (Channel 8)
Quality=53/70 Signal level=-57 dBm
Encryption key:on
ESSID:"HH40V_2014"
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=000000378cd5baf6
Extra: Last beacon: 3104ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
##### module infos ######################
[Deleted, too long for a question here]
##### module parameters #################
[iwlmvm]
init_dbg: N
power_scheme: 2
tfd_q_hang_detect: Y
[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
[iwlwifi]
11n_disable: 0
amsdu_size: 0
antenna_coupling: 0
bt_coex_active: Y
disable_11ac: N
disable_11ax: N
enable_ini: N
fw_monitor: N
fw_restart: Y
lar_disable: N
led_mode: 0
nvm_file: (null)
power_level: 0
power_save: N
remove_when_gone: N
swcrypto: 0
uapsd_disable: 3
[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/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 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/hid_apple.conf]
options hid_apple swap_fn_leftctrl=1
[/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
##### rc.local ##########################
grep: /etc/rc.local: No such file or directory
##### pm-utils ##########################
##### udev rules ########################
##### dmesg #############################
[100834.452581] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 2/3)
[100834.560601] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 3/3)
[100834.664578] wlp1s0: association with <MAC 'HH40V_2014' [AC1]> timed out
[100839.526368] wlp1s0: authenticate with <MAC 'HH40V_2014' [AC1]>
[100839.530823] wlp1s0: send auth to <MAC 'HH40V_2014' [AC1]> (try 1/3)
[100839.540729] wlp1s0: authenticated
[100839.544630] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 1/3)
[100839.648613] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 2/3)
[100839.752616] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 3/3)
[100839.856608] wlp1s0: association with <MAC 'HH40V_2014' [AC1]> timed out
[100853.194659] wlp1s0: authenticate with <MAC 'HH40V_2014' [AC1]>
[100853.199025] wlp1s0: send auth to <MAC 'HH40V_2014' [AC1]> (try 1/3)
[100853.209736] wlp1s0: authenticated
[100853.212701] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 1/3)
[100853.316692] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 2/3)
[100853.420757] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 3/3)
[100853.528772] wlp1s0: association with <MAC 'HH40V_2014' [AC1]> timed out
[100864.515077] wlp1s0: authenticate with <MAC 'HH40V_2014' [AC1]>
[100864.519522] wlp1s0: send auth to <MAC 'HH40V_2014' [AC1]> (try 1/3)
[100864.530287] wlp1s0: authenticated
[100864.532762] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 1/3)
[100864.636749] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 2/3)
[100864.740763] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 3/3)
[100864.848756] wlp1s0: association with <MAC 'HH40V_2014' [AC1]> timed out
[100875.778394] wlp1s0: authenticate with <MAC 'HH40V_2014' [AC1]>
[100875.782172] wlp1s0: send auth to <MAC 'HH40V_2014' [AC1]> (try 1/3)
[100875.792066] wlp1s0: authenticated
[100875.792813] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 1/3)
[100875.896822] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 2/3)
[100876.000825] wlp1s0: associate with <MAC 'HH40V_2014' [AC1]> (try 3/3)
[100876.104830] wlp1s0: association with <MAC 'HH40V_2014' [AC1]> timed out
[100890.314229] wlp1s0: authenticate with <MAC 'CheckVienna free WiFi' [AN2]>
[100890.319535] wlp1s0: send auth to <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[100890.321320] wlp1s0: authenticated
[100890.324890] wlp1s0: associate with <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[100890.326142] wlp1s0: RX AssocResp from <MAC 'CheckVienna free WiFi' [AN2]> (capab=0x1001 status=0 aid=4)
[100890.327879] wlp1s0: associated
[100890.328830] IPv6: ADDRCONF(NETDEV_CHANGE): wlp1s0: link becomes ready
[100908.164924] wlp1s0: authenticate with <MAC 'CheckVienna free WiFi' [AN2]>
[100908.170987] wlp1s0: send auth to <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[100908.173694] wlp1s0: authenticated
[100908.176996] wlp1s0: associate with <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[100908.177839] wlp1s0: RX AssocResp from <MAC 'CheckVienna free WiFi' [AN2]> (capab=0x1001 status=0 aid=4)
[100908.179414] wlp1s0: associated
[101087.018403] wlp1s0: authenticate with <MAC 'CheckVienna free WiFi' [AN2]>
[101087.023901] wlp1s0: send auth to <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101087.027541] wlp1s0: authenticated
[101087.034094] wlp1s0: associate with <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101087.035117] wlp1s0: RX AssocResp from <MAC 'CheckVienna free WiFi' [AN2]> (capab=0x1001 status=0 aid=2)
[101087.047429] wlp1s0: associated
[101101.955226] wlp1s0: authenticate with <MAC 'CheckVienna free WiFi' [AN2]>
[101101.961033] wlp1s0: send auth to <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101101.964820] wlp1s0: authenticated
[101101.967764] wlp1s0: associate with <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101101.995326] wlp1s0: RX AssocResp from <MAC 'CheckVienna free WiFi' [AN2]> (capab=0x1001 status=0 aid=2)
[101101.997458] wlp1s0: associated
[101103.887414] wlp1s0: authenticate with <MAC 'CheckVienna free WiFi' [AN2]>
[101103.893505] wlp1s0: send auth to <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101103.896942] wlp1s0: authenticated
[101103.901965] wlp1s0: associate with <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101103.925155] wlp1s0: RX AssocResp from <MAC 'CheckVienna free WiFi' [AN2]> (capab=0x1001 status=0 aid=2)
[101103.927154] wlp1s0: associated
[101107.027041] wlp1s0: Connection to AP <MAC 'CheckVienna free WiFi' [AN2]> lost
[101122.094897] wlp1s0: authenticate with <MAC 'CheckVienna free WiFi' [AN2]>
[101122.101080] wlp1s0: send auth to <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101122.103609] wlp1s0: authenticated
[101122.110970] wlp1s0: associate with <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101122.112600] wlp1s0: RX AssocResp from <MAC 'CheckVienna free WiFi' [AN2]> (capab=0x1001 status=0 aid=2)
[101122.114186] wlp1s0: associated
[101124.032222] wlp1s0: Connection to AP <MAC 'CheckVienna free WiFi' [AN2]> lost
[101136.695683] wlp1s0: authenticate with <MAC 'CheckVienna free WiFi' [AN2]>
[101136.701410] wlp1s0: send auth to <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101136.703755] wlp1s0: authenticated
[101136.704256] wlp1s0: associate with <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101136.706096] wlp1s0: RX AssocResp from <MAC 'CheckVienna free WiFi' [AN2]> (capab=0x1001 status=0 aid=2)
[101136.707291] wlp1s0: associated
[101142.051920] wlp1s0: Connection to AP <MAC 'CheckVienna free WiFi' [AN2]> lost
[101151.322008] wlp1s0: authenticate with <MAC 'CheckVienna free WiFi' [AN2]>
[101151.328345] wlp1s0: send auth to <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101151.332679] wlp1s0: authenticated
[101151.333619] wlp1s0: associate with <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101151.339988] wlp1s0: RX AssocResp from <MAC 'CheckVienna free WiFi' [AN2]> (capab=0x1001 status=0 aid=2)
[101151.341968] wlp1s0: associated
[101158.673690] wlp1s0: authenticate with <MAC 'CheckVienna free WiFi' [AN2]>
[101158.679524] wlp1s0: send auth to <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101158.685329] wlp1s0: authenticated
[101158.691771] wlp1s0: associate with <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101158.820432] wlp1s0: associate with <MAC 'CheckVienna free WiFi' [AN2]> (try 2/3)
[101158.873374] wlp1s0: associate with <MAC 'CheckVienna free WiFi' [AN2]> (try 3/3)
[101158.874968] wlp1s0: RX AssocResp from <MAC 'CheckVienna free WiFi' [AN2]> (capab=0x1001 status=0 aid=2)
[101158.877117] wlp1s0: associated
[101160.996620] wlp1s0: Connection to AP <MAC 'CheckVienna free WiFi' [AN2]> lost
[101177.412569] wlp1s0: authenticate with <MAC 'CheckVienna free WiFi' [AN2]>
[101177.417908] wlp1s0: send auth to <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101177.420025] wlp1s0: authenticated
[101177.421259] wlp1s0: associate with <MAC 'CheckVienna free WiFi' [AN2]> (try 1/3)
[101177.423953] wlp1s0: RX AssocResp from <MAC 'CheckVienna free WiFi' [AN2]> (capab=0x1001 status=0 aid=2)
[101177.425155] wlp1s0: associated
[101177.425800] IPv6: ADDRCONF(NETDEV_CHANGE): wlp1s0: link becomes ready
[101179.431047] wlp1s0: Connection to AP <MAC 'CheckVienna free WiFi' [AN2]> lost
########## wireless info END ############
答案1
我最终使用了这个答案：https://askubuntu.com/a/1272389/471632
重新安装一些软件包：
sudo apt install --reinstall resolvconf network-manager libnss-resolve