Ubuntu Mate 22.04 WiFi频繁断开且启用选项消失问题求助

大家早上好，

我正在使用Ubuntu Mate 22.04，最近WiFi连接的问题越来越棘手了。其实这个问题已经存在一段时间，但近期发作得愈发频繁。

之前只是偶尔会出现无线连接断开，设备搜不到任何WiFi信号，连网络设置里的「Enable wifi」开关都直接消失的情况。那时候重启电脑就能恢复，所以没太在意，但现在这个状况几乎隔段时间就会发生，实在影响使用。

我按照Ubuntu官方故障排查页面的指引，运行了几个相关命令，输出结果如下：

nmcli 命令输出 #

beoebdue@beoebdue-HP-Laptop-15-bs1xx:~$ nmcli

usb0: connected to Wired connection 2

"LG LM-X420xxx/G2 Android Phone"

ethernet (rndis_host), 56:DB:36:EE:F0:21, hw, mtu 1500

ip4 default

inet4 192.168.42.180/24

route4 192.168.42.0/24 metric 100

route4 default via 192.168.42.129 metric 100

inet6 fe80::e58e:c589:1d94:5c24/64

route6 fe80::/64 metric 1024

docker0: connected (externally) to docker0

"docker0"

bridge, 02:42:F9:E6:ED:DA, sw, mtu 1500

inet4 172.17.0.1/16

route4 172.17.0.0/16 metric 0

route4 169.254.0.0/16 metric 1000

C8:F3:19:AA:EB:E2: disconnected

"K20"

1 connection available

bt (bluez), C8:F3:19:AA:EB:E2, hw

wlo1: disconnected

"Intel Wireless-AC 3168NGW"

2 connections available

wifi (iwlwifi), 68:EC:C5:43:AD:AA, autoconnect, hw, mtu 1500

p2p-dev-wlo1: disconnected

"p2p-dev-wlo1"

wifi-p2p, hw

eno1: unavailable

"Realtek RTL8111/8168/8411"

ethernet (r8169), 10:E7:C6:A7:C9:24, hw, mtu 1500

lo: unmanaged

"lo"

loopback (unknown), 00:00:00:00:00:00, sw, mtu 65536

DNS configuration:

servers: 192.168.42.129

servers: 192.168.42.129

servers: 192.168.42.129

servers: 192.168.42.129

interface: usb0

Use "nmcli device show" to get complete information about known devices and
"nmcli connection show" to get an overview on active connection profiles.
Consult nmcli(1) and nmcli-examples(7) manual pages for complete usage details.

sudo lshw -C network 命令输出 #

beoebdue@beoebdue-HP-Laptop-15-bs1xx:~$ sudo lshw -C network

[sudo] password for beoebdue:

PCI (sysfs)

*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: eno1
version: 15
serial: 10:e7:c6:a7:c9:24
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=5.15.0-72-generic firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=twisted pair
resources: irq:16 ioport:3000(size=256) memory:b1104000-b1104fff memory:b1100000-b1103fff

*-network
description: Wireless interface
product: Dual Band Wireless-AC 3168NGW [Stone Peak]
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlo1
version: 10
serial: 68:ec:c5:43:ad:aa
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=5.15.0-72-generic firmware=29.198743027.0 3168-29.ucode latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:131 memory:b1000000-b1001fff

*-network
description: Ethernet interface
physical id: a
bus info: usb@1:3
logical name: usb0
serial: 56:db:36:ee:f0:21
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=rndis_host driverversion=5.15.0-72-generic duplex=half firmware=RNDIS device ip=192.168.42.180 link=yes multicast=yes port=twisted pair

另外我注意到一个关键现象：

• 当WiFi无法工作时，相关命令输出里找不到wlo1设备：

lo        no wireless extensions.

eno1      no wireless extensions.

docker0   no wireless extensions.

• 当WiFi正常工作时，wlo1设备会显示正常连接状态：

lo        no wireless extensions.

eno1      no wireless extensions.

docker0   no wireless extensions.

wlo1      IEEE 802.11  ESSID:"FRITZ!Box 7520 GC"
Mode:Managed  Frequency:5.58 GHz  Access Point: 2C:91:AB:A5:6C:40
Bit Rate=325 Mb/s   Tx-Power=22 dBm
Retry short limit:7   RTS thr:off   Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=43/70  Signal level=-67 dBm
Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
Tx excessive retries:0  Invalid misc:30   Missed beacon:0

有没有大佬能帮我解读这些输出，并且指导我怎么修复这个问题，让WiFi连接稳定下来？

提前感谢大家！如果有新进展或者需要补充任何信息，我会及时更新帖子的！

备注：内容来源于stack exchange，提问作者beoeb