我认为问题出在我的 WiFi 驱动程序上，因为我无法连接到 5Ghz Wifi，但可以连接到 2.4 Ghz Wifi。
我需要使用的驱动程序英特尔® Wireless-AC 9462（尝试安装它们但没有任何变化）
以下是我的报告，希望对您有所帮助：
########## wireless info START ##########
Report from: 25 Mar 2020 13:58 GMT +0000
Booted last: 25 Mar 2020 00:00 GMT +0000
Script from: 22 Oct 2018 03:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 18.04.4 LTS
Release: 18.04
Codename: bionic
##### kernel ############################
Linux 5.3.0-42-generic #34~18.04.1-Ubuntu SMP Fri Feb 28 13:42:26 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=1
##### desktop ###########################
Ubuntu
##### lspci #############################
00:14.3 Network controller [0280]: Intel Corporation Wireless-AC 9560 [Jefferson Peak] [8086:a370] (rev 10)
Subsystem: Intel Corporation Device [8086:02a4]
Kernel driver in use: iwlwifi
00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (7) I219-V [8086:15bc] (rev 10)
Subsystem: Micro-Star International Co., Ltd. [MSI] Ethernet Connection (7) I219-V [1462:7b17]
Kernel driver in use: e1000e
##### lsusb #############################
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 1462:1720 Micro Star International
Bus 001 Device 003: ID 2516:0011
Bus 001 Device 006: ID 8087:0aaa Intel Corp.
Bus 001 Device 008: ID 1b1c:0c0b Corsair
Bus 001 Device 007: ID 1b1c:0c18 Corsair
Bus 001 Device 005: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 002: ID 1038:1720 SteelSeries ApS
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### secure boot #######################
SecureBoot disabled
##### lsmod #############################
wmi_bmof 16384 0
intel_wmi_thunderbolt 20480 0
mxm_wmi 16384 0
iwlmvm 417792 0
mac80211 778240 1 iwlmvm
libarc4 16384 1 mac80211
iwlwifi 376832 1 iwlmvm
cfg80211 688128 3 iwlmvm,iwlwifi,mac80211
compat 16384 4 iwlmvm,iwlwifi,mac80211,cfg80211
wmi 32768 3 intel_wmi_thunderbolt,wmi_bmof,mxm_wmi
##### 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: eno2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether <MAC 'eno2' [IF1]> brd <MAC address>
3: wlo1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether <MAC 'wlo1' [IF2]> brd <MAC address>
inet 192.168.0.15/24 brd 192.168.0.255 scope global dynamic noprefixroute wlo1
valid_lft 85778sec preferred_lft 85778sec
inet6 fe80::7889:a0bd:8809:1312/64 scope link noprefixroute
valid_lft forever preferred_lft forever
##### iwconfig ##########################
wlo1 no wireless extensions.
eno2 no wireless extensions.
lo no wireless extensions.
##### route #############################
default via 192.168.0.1 dev wlo1 proto dhcp metric 600
169.254.0.0/16 dev wlo1 scope link metric 1000
192.168.0.0/24 dev wlo1 proto kernel scope link src 192.168.0.15 metric 600
##### resolv.conf #######################
[777 root '/etc/resolv.conf' -> '../run/systemd/resolve/stub-resolv.conf']
nameserver 127.0.0.53
options edns0
##### network managers ##################
Installed:
NetworkManager
Running:
root 1118 1 0 13:48 ? 00:00:00 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: wlo1
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.VENDOR: Intel Corporation
GENERAL.PRODUCT: --
GENERAL.DRIVER: iwlwifi
GENERAL.DRIVER-VERSION: 5.3.0-42-generic
GENERAL.FIRMWARE-VERSION: 46.6bf1df06.0 9000-pu-b0-jf-b0-
GENERAL.HWADDR: <MAC 'wlo1' [IF2]>
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:14.3/net/wlo1
GENERAL.IP-IFACE: wlo1
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: JohnStreet
GENERAL.CON-UUID: 4a1c26e6-a915-495c-b1dc-2d56b6a2c5db
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/1
GENERAL.METERED: no (guessed)
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: 72 Mb/s
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: yes
IP4.ADDRESS[1]: 192.168.0.15/24
IP4.GATEWAY: 192.168.0.1
IP4.ROUTE[1]: dst = 0.0.0.0/0, nh = 192.168.0.1, mt = 600
IP4.ROUTE[2]: dst = 192.168.0.0/24, nh = 0.0.0.0, mt = 600
IP4.ROUTE[3]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]: 194.168.4.100
IP4.DNS[2]: 194.168.8.100
DHCP4.OPTION[1]: requested_host_name = 1
DHCP4.OPTION[2]: requested_domain_search = 1
DHCP4.OPTION[3]: requested_time_offset = 1
DHCP4.OPTION[4]: host_name = pirkos
DHCP4.OPTION[5]: requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[6]: requested_broadcast_address = 1
DHCP4.OPTION[7]: requested_domain_name = 1
DHCP4.OPTION[8]: requested_netbios_scope = 1
DHCP4.OPTION[9]: requested_wpad = 1
DHCP4.OPTION[10]: next_server = 192.168.0.1
DHCP4.OPTION[11]: broadcast_address = 192.168.0.255
DHCP4.OPTION[12]: requested_interface_mtu = 1
DHCP4.OPTION[13]: dhcp_message_type = 5
DHCP4.OPTION[14]: routers = 192.168.0.1
DHCP4.OPTION[15]: dhcp_lease_time = 86400
DHCP4.OPTION[16]: ip_address = 192.168.0.15
DHCP4.OPTION[17]: requested_static_routes = 1
DHCP4.OPTION[18]: subnet_mask = 255.255.255.0
DHCP4.OPTION[19]: requested_subnet_mask = 1
DHCP4.OPTION[20]: requested_domain_name_servers = 1
DHCP4.OPTION[21]: expiry = 1585230509
DHCP4.OPTION[22]: requested_ntp_servers = 1
DHCP4.OPTION[23]: requested_netbios_name_servers = 1
DHCP4.OPTION[24]: domain_name_servers = 194.168.4.100 194.168.8.100
DHCP4.OPTION[25]: requested_routers = 1
DHCP4.OPTION[26]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[27]: network_number = 192.168.0.0
DHCP4.OPTION[28]: dhcp_server_identifier = 192.168.0.1
IP6.ADDRESS[1]: fe80::7889:a0bd:8809:1312/64
IP6.GATEWAY: --
IP6.ROUTE[1]: dst = ff00::/8, nh = ::, mt = 256, table=255
IP6.ROUTE[2]: dst = fe80::/64, nh = ::, mt = 256
IP6.ROUTE[3]: dst = fe80::/64, nh = ::, mt = 600
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{2}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 4a1c26e6-a915-495c-b1dc-2d56b6a2c5db | JohnStreet
GENERAL.DEVICE: eno2
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.VENDOR: Intel Corporation
GENERAL.PRODUCT: Ethernet Connection (7) I219-V
GENERAL.DRIVER: e1000e
GENERAL.DRIVER-VERSION: 3.2.6-k
GENERAL.FIRMWARE-VERSION: 0.2-4
GENERAL.HWADDR: <MAC 'eno2' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 2 (Device is now managed)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1f.6/net/eno2
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 IN-USE
JohnStreet <MAC 'JohnStreet' [AN1]> Infra 6 2437 MHz 130 Mbit/s 60 ▂▄▆_ WPA1 WPA2 yes *
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager config #############
[[/etc/NetworkManager/conf.d/10-ubuntu-fan.conf]]
[keyfile]
unmanaged-devices+=interface-name:fan-*
[[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]]
[connection]
wifi.powersave = 2
[[/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:wwan
[[/usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf]]
[connectivity]
uri=http://connectivity-check.ubuntu.com/
[[/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
wifi.cloned-mac-address=preserve
ethernet.cloned-mac-address=preserve
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/JohnStreet 5G]] (600 root)
[connection] id=JohnStreet 5G | type=wifi | permissions=
[wifi] mac-address=<MAC 'wlo1' [IF2]> | mac-address-blacklist= | ssid=JohnStreet 5G
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/JohnStreet]] (600 root)
[connection] id=JohnStreet | type=wifi | permissions=
[wifi] mac-address=<MAC 'wlo1' [IF2]> | mac-address-blacklist= | ssid=JohnStreet
[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/London (based on set time zone)
global
country GB: DFS-ETSI
(2402 - 2482 @ 40), (N/A, 20), (N/A)
(5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW
(5490 - 5710 @ 160), (N/A, 27), (0 ms), DFS
(57000 - 66000 @ 2160), (N/A, 40), (N/A)
##### iwlist channels ###################
wlo1 no frequency information.
eno2 no frequency information.
lo no frequency information.
##### iwlist scan #######################
wlo1 Interface doesn't support scanning.
eno2 Interface doesn't support scanning.
lo Interface doesn't support scanning.
##### module infos ######################
[iwlmvm]
filename: /lib/modules/5.3.0-42-generic/updates/drivers/net/wireless/intel/iwlwifi/mvm/iwlmvm.ko
version: iwlwifi-stack-public:master:8324:9176b151
license: GPL
author: Copyright(c) 2003- 2015 Intel Corporation <[email protected]>
description: The new Intel(R) wireless AGN driver for Linux
srcversion: 03FD107A3ACB22BC7B9B05B
depends: iwlwifi,mac80211,compat,cfg80211
retpoline: Y
name: iwlmvm
vermagic: 5.3.0-42-generic SMP mod_unload
parm: init_dbg:set to true to debug an ASSERT in INIT fw (default: false (bool)
parm: power_scheme:power management scheme: 1-active, 2-balanced, 3-low power, default: 2 (int)
parm: tfd_q_hang_detect:TFD queues hang detection (default: true (bool)
[mac80211]
filename: /lib/modules/5.3.0-42-generic/updates/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
version: iwlwifi-stack-public:master:8324:9176b151
srcversion: 2CBDE2280305E453FCD816B
depends: cfg80211,compat,libarc4
retpoline: Y
name: mac80211
vermagic: 5.3.0-42-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)
[iwlwifi]
filename: /lib/modules/5.3.0-42-generic/updates/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko
version: iwlwifi-stack-public:master:8324:9176b151
license: GPL
author: Copyright(c) 2003- 2015 Intel Corporation <[email protected]>
description: Intel(R) Wireless WiFi driver for Linux
firmware: iwlwifi-7265D-29.ucode
firmware: iwlwifi-7265-17.ucode
firmware: iwlwifi-3168-29.ucode
firmware: iwlwifi-3160-17.ucode
firmware: iwlwifi-7260-17.ucode
firmware: iwlwifi-8265-36.ucode
firmware: iwlwifi-8000C-36.ucode
firmware: iwlwifi-9260-th-b0-jf-b0-46.ucode
firmware: iwlwifi-9000-pu-b0-jf-b0-46.ucode
firmware: iwlwifi-SoSnj-a0-gf-a0-55.ucode
firmware: iwlwifi-SoSnj-a0-gf4-a0-55.ucode
firmware: iwlwifi-ty-a0-gf-a0-55.ucode
firmware: iwlwifi-so-a0-gf-a0-55.ucode
firmware: iwlwifi-so-a0-hr-b0-55.ucode
firmware: iwlwifi-so-a0-jf-b0-55.ucode
firmware: iwlwifi-cc-a0-55.ucode
firmware: iwlwifi-QuQnj-b0-jf-b0-55.ucode
firmware: iwlwifi-QuZ-a0-jf-b0-55.ucode
firmware: iwlwifi-QuZ-a0-hr-b0-55.ucode
firmware: iwlwifi-Qu-b0-jf-b0-55.ucode
firmware: iwlwifi-Qu-c0-hr-b0-55.ucode
firmware: iwlwifi-QuQnj-b0-hr-b0-55.ucode
firmware: iwlwifi-Qu-a0-jf-b0-55.ucode
firmware: iwlwifi-Qu-a0-hr-a0-55.ucode
srcversion: 429405ECF8888645E7117B9
depends: compat,cfg80211
retpoline: Y
name: iwlwifi
vermagic: 5.3.0-42-generic SMP mod_unload
parm: debug:debug output mask (uint)
parm: xvt_default_mode:xVT is the default operation mode (default: false) (bool)
parm: swcrypto:using crypto in software (default 0 [hardware]) (int)
parm: 11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
parm: amsdu_size:amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, 4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0) (int)
parm: fw_restart:restart firmware in case of error (default true) (bool)
parm: antenna_coupling:specify antenna coupling in dB (default: 0 dB) (int)
parm: nvm_file:NVM file name (charp)
parm: uapsd_disable:disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3) (uint)
parm: enable_ini:Enable debug INI TLV FW debug infrastructure (default: true (bool)
parm: bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
parm: led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
parm: power_save:enable WiFi power management (default: disable) (bool)
parm: power_level:default power save level (range from 1 - 5, default: 1) (int)
parm: disable_11ac:Disable VHT capabilities (default: false) (bool)
parm: disable_11ax:Disable HE capabilities (default: false) (bool)
parm: disable_msix:Disable MSI-X and use MSI instead (default: false) (bool)
parm: remove_when_gone:Remove dev from PCIe bus if it is deemed inaccessible (default: false) (bool)
[cfg80211]
filename: /lib/modules/5.3.0-42-generic/updates/net/wireless/cfg80211.ko
version: iwlwifi-stack-public:master:8324:9176b151
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 85C762B91466B7F2749B25C
depends: compat
retpoline: Y
name: cfg80211
vermagic: 5.3.0-42-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 #################
[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
debug: 0
disable_11ac: N
disable_11ax: N
disable_msix: N
enable_ini: Y
fw_restart: Y
led_mode: 0
nvm_file: (null)
power_level: 0
power_save: N
remove_when_gone: N
swcrypto: 0
uapsd_disable: 3
xvt_default_mode: N
[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 i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac
blacklist nouveau
blacklist lbm-nouveau
options nouveau modeset=0
alias nouveau off
alias lbm-nouveau off
[/etc/modprobe.d/blacklist-nouveau.conf]
blacklist nouveau
options nouveau modeset=0
[/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
[/etc/modprobe.d/nouveau-kms.conf]
options nouveau modeset=0
##### rc.local ##########################
grep: /etc/rc.local: No such file or directory
##### pm-utils ##########################
##### udev rules ########################
##### dmesg #############################
[ 21.034295] iwlwifi-stack-public:master:8324:9176b151
[ 21.052201] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
[ 21.053275] iwlwifi 0000:00:14.3: Direct firmware load for iwl-dbg-cfg.ini failed with error -2
[ 21.055204] iwlwifi 0000:00:14.3: WRT: Overriding region id 1
[ 21.055205] iwlwifi 0000:00:14.3: WRT: Overriding region id 2
[ 21.055206] iwlwifi 0000:00:14.3: WRT: Overriding region id 3
[ 21.055206] iwlwifi 0000:00:14.3: WRT: Overriding region id 4
[ 21.055207] iwlwifi 0000:00:14.3: WRT: Overriding region id 6
[ 21.055207] iwlwifi 0000:00:14.3: WRT: Overriding region id 8
[ 21.055207] iwlwifi 0000:00:14.3: WRT: Overriding region id 9
[ 21.055208] iwlwifi 0000:00:14.3: WRT: Overriding region id 10
[ 21.055208] iwlwifi 0000:00:14.3: WRT: Overriding region id 11
[ 21.055209] iwlwifi 0000:00:14.3: WRT: Overriding region id 15
[ 21.055209] iwlwifi 0000:00:14.3: WRT: Overriding region id 16
[ 21.055210] iwlwifi 0000:00:14.3: WRT: Overriding region id 18
[ 21.055210] iwlwifi 0000:00:14.3: WRT: Overriding region id 19
[ 21.055211] iwlwifi 0000:00:14.3: Found debug destination: EXTERNAL_DRAM
[ 21.055212] iwlwifi 0000:00:14.3: Found debug configuration: 0
[ 21.055367] iwlwifi 0000:00:14.3: loaded firmware version 46.6bf1df06.0 9000-pu-b0-jf-b0-46.ucode op_mode iwlmvm
[ 21.055377] iwlwifi 0000:00:14.3: Direct firmware load for iwl-debug-yoyo.bin failed with error -2
[ 21.061112] iwlwifi 0000:00:14.3: Detected Intel(R) Wireless-AC 9462, REV=0x318
[ 21.107781] iwlwifi 0000:00:14.3: base HW address: <MAC 'wlo1' [IF2]>
[ 21.151561] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 21.420059] iwlwifi 0000:00:14.3 wlo1: renamed from wlan0
[ 22.169590] iwlwifi 0000:00:14.3: Conflict between TLV & NVM regarding enabling LAR (TLV = enabled NVM =disabled)
[ 22.171106] iwlwifi 0000:00:14.3: BIOS contains WGDS but no WRDS
[ 25.404719] wlo1: authenticate with <MAC 'JohnStreet' [AN1]>
[ 25.412499] wlo1: send auth to <MAC 'JohnStreet' [AN1]> (try 1/3)
[ 25.436095] wlo1: authenticated
[ 25.438328] wlo1: associate with <MAC 'JohnStreet' [AN1]> (try 1/3)
[ 25.444098] wlo1: RX AssocResp from <MAC 'JohnStreet' [AN1]> (capab=0x431 status=0 aid=3)
[ 25.445791] wlo1: associated
[ 25.480908] IPv6: ADDRCONF(NETDEV_CHANGE): wlo1: link becomes ready
########## wireless info END ############
我尽了一切努力，但无济于事。我希望这个问题能像这个人的问题一样得到解决：ubuntu 17.04 无法使用英特尔公司设备 24fd（修订版 78）扫描任何 wifi
dmesg | grep iwl这是以下答案之后的输出
[ 38.322460] Loading modules backported from iwlwifi
[ 38.322460] iwlwifi-stack-public:master:8324:9176b151
[ 38.354367] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
[ 38.356714] iwlwifi 0000:00:14.3: Direct firmware load for iwl-dbg-cfg.ini failed with error -2
[ 38.358577] iwlwifi 0000:00:14.3: WRT: Overriding region id 1
[ 38.358578] iwlwifi 0000:00:14.3: WRT: Overriding region id 2
[ 38.358578] iwlwifi 0000:00:14.3: WRT: Overriding region id 3
[ 38.358579] iwlwifi 0000:00:14.3: WRT: Overriding region id 4
[ 38.358579] iwlwifi 0000:00:14.3: WRT: Overriding region id 6
[ 38.358580] iwlwifi 0000:00:14.3: WRT: Overriding region id 8
[ 38.358580] iwlwifi 0000:00:14.3: WRT: Overriding region id 9
[ 38.358580] iwlwifi 0000:00:14.3: WRT: Overriding region id 10
[ 38.358581] iwlwifi 0000:00:14.3: WRT: Overriding region id 11
[ 38.358581] iwlwifi 0000:00:14.3: WRT: Overriding region id 15
[ 38.358582] iwlwifi 0000:00:14.3: WRT: Overriding region id 16
[ 38.358582] iwlwifi 0000:00:14.3: WRT: Overriding region id 18
[ 38.358583] iwlwifi 0000:00:14.3: WRT: Overriding region id 19
[ 38.358584] iwlwifi 0000:00:14.3: Found debug destination: EXTERNAL_DRAM
[ 38.358584] iwlwifi 0000:00:14.3: Found debug configuration: 0
[ 38.358749] iwlwifi 0000:00:14.3: loaded firmware version 46.6bf1df06.0 9000-pu-b0-jf-b0-46.ucode op_mode iwlmvm
[ 38.358764] iwlwifi 0000:00:14.3: Direct firmware load for iwl-debug-yoyo.bin failed with error -2
[ 38.366075] iwlwifi 0000:00:14.3: Detected Intel(R) Wireless-AC 9462, REV=0x318
[ 38.414069] iwlwifi 0000:00:14.3: base HW address: 4c:1d:96:0e:5e:84
[ 38.458365] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 38.916589] iwlwifi 0000:00:14.3 wlo1: renamed from wlan0
[ 39.736608] iwlwifi 0000:00:14.3: Conflict between TLV & NVM regarding enabling LAR (TLV = enabled NVM =disabled)
[ 39.738091] iwlwifi 0000:00:14.3: BIOS contains WGDS but no WRDS
以下是截图nmcli device wifi list
答案1
首先，让我们确保您拥有最新的固件：
wget http://security.ubuntu.com/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.183.2_all.deb
sudo dpkg -i linux*.deb
重新启动并显示：
dmesg | grep iwl
在我们收集上述结果后，我将继续回答这个问题。
编辑：您的无线设备现在清楚地看到了 5 gHz 接入点。我们注意到加密方法显示为 WPA 和 WPA2 混合模式。
请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。使用固定信道（1、6、11、44 或 52）比自动信道选择更幸运。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。进行这些更改后，重新启动路由器。
现在您可以连接到 5 gHz 接入点吗？