我最近购买了一台 Dell XPS 15 9500，还有一台 Dell XPS 13 9370。它们都以双启动方式运行 Ubuntu 20.04。
我有一个接入点（私人的，在家里），13 可以毫无问题地连接，但 15 却不行。到目前为止，15 与任何其他接入点都没有出现任何问题。日志中 NetworkManager 日志的输出如下：
dec 15 21:15:49 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599349.5607] audit: op="radio-control" arg="wireless-enabled" pid=1808 uid=1000 result="success"
dec 15 21:15:49 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599349.5609] manager: rfkill: Wi-Fi now disabled by radio killswitch
dec 15 21:15:55 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599355.6388] manager: rfkill: Wi-Fi hardware radio set enabled
dec 15 21:15:55 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599355.7779] audit: op="radio-control" arg="wireless-enabled" pid=1808 uid=1000 result="success"
dec 15 21:15:55 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599355.7781] manager: rfkill: Wi-Fi now enabled by radio killswitch
dec 15 21:15:55 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599355.8482] sup-iface[0x55b0b19e0200,wlp108s0]: supports 5 scan SSIDs
dec 15 21:15:55 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599355.8497] device (wlp108s0): supplicant interface state: starting -> ready
dec 15 21:15:55 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599355.8498] device (wlp108s0): state change: unavailable -> disconnected (reason 'supplicant-available', sys-iface-state: 'managed')
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2385] device (wlp108s0): Activation: starting connection 'wifi_Dehaye' (56fb3abf-fc97-4018-b22e-59fb7f45bcb9)
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2386] audit: op="connection-activate" uuid="56fb3abf-fc97-4018-b22e-59fb7f45bcb9" name="wifi_Dehaye" pid=1808 uid=1000 result="succes>
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2387] device (wlp108s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2390] manager: NetworkManager state is now CONNECTING
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2393] device (wlp108s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2396] device (wlp108s0): Activation: (wifi) access point 'wifi_Dehaye' has security, but secrets are required.
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2396] device (wlp108s0): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed')
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2413] device (wlp108s0): state change: need-auth -> prepare (reason 'none', sys-iface-state: 'managed')
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2415] device (wlp108s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2418] device (wlp108s0): Activation: (wifi) connection 'wifi_Dehaye' has security, and secrets exist. No new secrets needed.
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2418] Config: added 'ssid' value 'wifi_Dehaye'
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2418] Config: added 'scan_ssid' value '1'
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2418] Config: added 'bgscan' value 'simple:30:-70:86400'
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2418] Config: added 'key_mgmt' value 'NONE'
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2419] Config: added 'auth_alg' value 'OPEN'
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2419] Config: added 'wep_key0' value '<hidden>'
dec 15 21:19:07 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599547.2419] Config: added 'wep_tx_keyidx' value '0'
dec 15 21:19:09 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599549.2576] device (wlp108s0): supplicant interface state: ready -> inactive
dec 15 21:19:32 vincent-XPS-15-9500 NetworkManager[839]: <warn> [1639599572.7707] device (wlp108s0): Activation: (wifi) association took too long, failing activation
dec 15 21:19:32 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599572.7708] device (wlp108s0): state change: config -> failed (reason 'ssid-not-found', sys-iface-state: 'managed')
dec 15 21:19:32 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599572.7716] manager: NetworkManager state is now DISCONNECTED
dec 15 21:19:32 vincent-XPS-15-9500 NetworkManager[839]: <warn> [1639599572.7735] device (wlp108s0): Activation: failed for connection 'wifi_Dehaye'
dec 15 21:19:32 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599572.7737] device (wlp108s0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
dec 15 21:19:32 vincent-XPS-15-9500 NetworkManager[839]: <info> [1639599572.7763] device (wlp108s0): supplicant interface state: inactive -> disconnected
无线接口是：
description: Wireless interface
product: Qualcomm
vendor: Qualcomm
physical id: 0
bus info: pci@0000:6c:00.0
logical name: wlp108s0
version: 01
serial: 9c:b6:d0:3f:90:da
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath11k_pci driverversion=5.11.0-41-generic firmware=N/A ip=192.168.43.228 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:171 memory:b4200000-b42fffff
我已经尝试了很多修复方法，包括但不限于：
sudo iw wlp108s0 set power_save off- ，
/etc/NetworkManager/NetworkManager.conf设置managed为 true 和wifi.scan-rand-mac-addressno - 签到
mac-address-blacklist（/etc/NetworkManager/system-connections/wifi_Dehaye.nmconnection空） - 打开和关闭 wifi、蓝牙
- 忘记网络配置
- 关闭自动连接
- 在“软件和更新”中查找驱动程序更新/附加驱动程序，但无此内容
很高兴提供所需的任何其他信息，我对网络不是很了解，我只是比较盲目。