我在我的笔记本上使用 Fedora 31。一切正常，除了 Fedora 一段时间后断开 wifi 连接，需要重新连接网络。重新连接后每隔几分钟，这种行为就会重演。我不知道原因是什么。当我下载文件（在网络上“加载”）时经常会发生这种情况，但有时也没有任何明显的原因。该问题首先出现在 Fedora 30 下，并在升级到 Fedora 31 后仍然存在。
Journalctl -b -u NetworkManager 的输出：
-- Logs begin at Sun 2019-07-14 01:05:47 CEST, end at Sat 2019-11-16 23:42:15 CET. --
Nov 16 23:35:19 localhost.localdomain systemd[1]: Starting Network Manager...
Nov 16 23:35:19 localhost.localdomain NetworkManager[1073]: <info> [1573943719.8189] NetworkManager (version 1.20.6-1.fc31) is starting... (after a restart)
Nov 16 23:35:19 localhost.localdomain NetworkManager[1073]: <info> [1573943719.8191] Read config: /etc/NetworkManager/NetworkManager.conf (lib: 20-connectivity-fedora.conf)
Nov 16 23:35:19 localhost.localdomain systemd[1]: Started Network Manager.
Nov 16 23:35:19 localhost.localdomain NetworkManager[1073]: <info> [1573943719.8260] bus-manager: acquired D-Bus service "org.freedesktop.NetworkManager"
Nov 16 23:35:19 localhost.localdomain NetworkManager[1073]: <info> [1573943719.8355] manager[0x5559cd8e80f0]: monitoring kernel firmware directory '/lib/firmware'.
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3382] hostname: hostname: using hostnamed
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3385] hostname: hostname changed from (none) to "localhost.localdomain"
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3390] dns-mgr[0x5559cd8cd240]: init: dns=default,systemd-resolved rc-manager=symlink
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3401] rfkill2: found Wi-Fi radio killswitch (at /sys/devices/pci0000:00/0000:00:1d.3/0000:05:00.0/ieee80211/phy0/rfkill2) (driver ath10k_pci)
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3403] manager[0x5559cd8e80f0]: rfkill: Wi-Fi hardware radio set enabled
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3403] manager[0x5559cd8e80f0]: rfkill: WWAN hardware radio set enabled
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3479] Loaded device plugin: NMWifiFactory (/usr/lib64/NetworkManager/1.20.6-1.fc31/libnm-device-plugin-wifi.so)
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3486] Loaded device plugin: NMAtmManager (/usr/lib64/NetworkManager/1.20.6-1.fc31/libnm-device-plugin-adsl.so)
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3511] Loaded device plugin: NMTeamFactory (/usr/lib64/NetworkManager/1.20.6-1.fc31/libnm-device-plugin-team.so)
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3553] Loaded device plugin: NMBluezManager (/usr/lib64/NetworkManager/1.20.6-1.fc31/libnm-device-plugin-bluetooth.so)
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3559] Loaded device plugin: NMWwanFactory (/usr/lib64/NetworkManager/1.20.6-1.fc31/libnm-device-plugin-wwan.so)
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3561] manager: rfkill: Wi-Fi enabled by radio killswitch; enabled by state file
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3563] manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3565] manager: Networking is enabled by state file
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3567] dhcp-init: Using DHCP client 'internal'
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3644] settings: Loaded settings plugin: ifcfg-rh ("/usr/lib64/NetworkManager/1.20.6-1.fc31/libnm-settings-plugin-ifcfg-rh.so")
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3644] settings: Loaded settings plugin: keyfile (internal)
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3838] device (lo): carrier: link connected
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3845] manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3886] manager: (enp4s0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/2)
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3951] settings: (enp4s0): created default wired connection 'Kabelgebundene Verbindung 1'
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.3986] device (enp4s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.4067] device (wlp5s0): driver supports Access Point (AP) mode
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.4079] manager: (wlp5s0): new 802.11 Wi-Fi device (/org/freedesktop/NetworkManager/Devices/3)
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.4127] device (wlp5s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
Nov 16 23:35:20 localhost.localdomain NetworkManager[1073]: <info> [1573943720.7252] device (wlp5s0): set-hw-addr: set MAC address to 96:1B:95:D7:6D:B2 (scanning)
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0023] modem-manager: ModemManager available
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0103] manager: (virbr0): new Bridge device (/org/freedesktop/NetworkManager/Devices/4)
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0157] supplicant: wpa_supplicant running
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0157] device (wlp5s0): supplicant interface state: init -> starting
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0323] manager: (virbr0-nic): new Tun device (/org/freedesktop/NetworkManager/Devices/5)
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0446] device (virbr0-nic): state change: unmanaged -> unavailable (reason 'connection-assumed', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0458] device (virbr0-nic): state change: unavailable -> disconnected (reason 'none', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0583] sup-iface[0x5559cd8fe130,wlp5s0]: supports 5 scan SSIDs
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0596] device (wlp5s0): supplicant interface state: starting -> ready
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0597] Wi-Fi P2P device controlled by interface wlp5s0 created
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0599] manager: (p2p-dev-wlp5s0): new 802.11 Wi-Fi P2P device (/org/freedesktop/NetworkManager/Devices/6)
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0602] device (p2p-dev-wlp5s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0610] device (p2p-dev-wlp5s0): state change: unavailable -> disconnected (reason 'none', sys-iface-state: 'managed')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.0613] device (wlp5s0): state change: unavailable -> disconnected (reason 'supplicant-available', sys-iface-state: 'managed')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <warn> [1573943721.0631] sup-iface: failed to cancel p2p connect: P2P cancel failed
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.3859] device (virbr0): state change: unmanaged -> unavailable (reason 'connection-assumed', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.3906] device (virbr0): state change: unavailable -> disconnected (reason 'connection-assumed', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.3924] device (virbr0): Activation: starting connection 'virbr0' (dc059138-81a5-4d0a-bb5e-725c891ae6bf)
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.3935] device (virbr0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.3947] device (virbr0): state change: prepare -> config (reason 'none', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.3976] device (virbr0-nic): Activation: starting connection 'virbr0-nic' (d3fd587b-3b1e-418f-9fa9-dc52709be3e1)
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.3980] device (virbr0): state change: config -> ip-config (reason 'none', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.3991] device (virbr0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4045] device (virbr0-nic): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4060] device (virbr0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4066] device (virbr0-nic): state change: prepare -> config (reason 'none', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4073] device (virbr0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4083] manager: NetworkManager state is now CONNECTED_LOCAL
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4108] device (virbr0): Activation: successful, device activated.
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4127] device (virbr0-nic): state change: config -> ip-config (reason 'none', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4203] device (virbr0): bridge port virbr0-nic was attached
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4203] device (virbr0-nic): Activation: connection 'virbr0-nic' enslaved, continuing activation
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4214] device (virbr0-nic): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4270] device (virbr0-nic): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4274] device (virbr0-nic): state change: secondaries -> activated (reason 'none', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4291] device (virbr0-nic): Activation: successful, device activated.
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4363] device (virbr0-nic): state change: activated -> unmanaged (reason 'connection-assumed', sys-iface-state: 'external')
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4374] device (virbr0): bridge port virbr0-nic was detached
Nov 16 23:35:21 localhost.localdomain NetworkManager[1073]: <info> [1573943721.4374] device (virbr0-nic): released from master device virbr0
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7709] policy: auto-activating connection 'Wifi-SSID' (b11eeab9-1cd2-40cf-b02e-719ac7a2cbcb)
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7722] device (wlp5s0): Activation: starting connection 'Wifi-SSID' (b11eeab9-1cd2-40cf-b02e-719ac7a2cbcb)
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7731] device (wlp5s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7741] manager: NetworkManager state is now CONNECTING
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7777] device (wlp5s0): set-hw-addr: reset MAC address to 58:00:E3:D0:B5:0F (preserve)
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7887] device (wlp5s0): supplicant interface state: ready -> disabled
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7889] device (p2p-dev-wlp5s0): supplicant management interface state: ready -> disabled
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7892] device (wlp5s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7897] device (wlp5s0): Activation: (wifi) access point 'Wifi-SSID' has security, but secrets are required.
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7898] device (wlp5s0): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed')
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7901] sup-iface[0x5559cd8fe130,wlp5s0]: wps: type pbc start...
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7939] device (wlp5s0): state change: need-auth -> prepare (reason 'none', sys-iface-state: 'managed')
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7946] device (wlp5s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7950] device (wlp5s0): Activation: (wifi) connection 'Wifi-SSID' has security, and secrets exist. No new secrets needed.
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7952] Config: added 'ssid' value 'Wifi-SSID'
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7952] Config: added 'scan_ssid' value '1'
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7953] Config: added 'bssid' value '54:67:51:B8:29:2A'
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7954] Config: added 'key_mgmt' value 'WPA-PSK WPA-PSK-SHA256 FT-PSK'
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7955] Config: added 'psk' value '<hidden>'
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7982] device (wlp5s0): supplicant interface state: disabled -> inactive
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.7982] device (p2p-dev-wlp5s0): supplicant management interface state: disabled -> inactive
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.8098] device (wlp5s0): supplicant interface state: inactive -> scanning
Nov 16 23:35:25 localhost.localdomain NetworkManager[1073]: <info> [1573943725.8099] device (p2p-dev-wlp5s0): supplicant management interface state: inactive -> scanning
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.5410] device (wlp5s0): supplicant interface state: scanning -> authenticating
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.5412] device (p2p-dev-wlp5s0): supplicant management interface state: scanning -> authenticating
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.5617] device (wlp5s0): supplicant interface state: authenticating -> associating
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.5618] device (p2p-dev-wlp5s0): supplicant management interface state: authenticating -> associating
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.6162] device (wlp5s0): supplicant interface state: associating -> associated
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.6162] device (p2p-dev-wlp5s0): supplicant management interface state: associating -> associated
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.6367] device (wlp5s0): supplicant interface state: associated -> 4-way handshake
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.6367] device (p2p-dev-wlp5s0): supplicant management interface state: associated -> 4-way handshake
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.7563] device (wlp5s0): supplicant interface state: 4-way handshake -> completed
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.7564] device (wlp5s0): Activation: (wifi) Stage 2 of 5 (Device Configure) successful. Connected to wireless network "Wifi-SSID"
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.7564] device (p2p-dev-wlp5s0): supplicant management interface state: 4-way handshake -> completed
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.7651] device (wlp5s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.7656] dhcp4 (wlp5s0): activation: beginning transaction (timeout in 45 seconds)
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.8962] dhcp4 (wlp5s0): state changed unknown -> bound
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.8970] device (wlp5s0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.8993] device (wlp5s0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.8995] device (wlp5s0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.9002] manager: NetworkManager state is now CONNECTED_LOCAL
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.9017] manager: NetworkManager state is now CONNECTED_SITE
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.9018] policy: set 'Wifi-SSID' (wlp5s0) as default for IPv4 routing and DNS
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.9062] device (wlp5s0): Activation: successful, device activated.
Nov 16 23:35:30 localhost.localdomain NetworkManager[1073]: <info> [1573943730.9069] manager: startup complete
Nov 16 23:35:31 localhost.localdomain NetworkManager[1073]: <info> [1573943731.0336] manager: NetworkManager state is now CONNECTED_GLOBAL
Nov 16 23:35:32 localhost.localdomain NetworkManager[1073]: <info> [1573943732.0747] policy: set 'Wifi-SSID' (wlp5s0) as default for IPv6 routing and DNS
Nov 16 23:35:34 localhost.localdomain NetworkManager[1073]: <info> [1573943734.5034] agent-manager: req[0x5559cd9eb540, :1.201/org.gnome.Shell.NetworkAgent/1000]: agent registered
Nov 16 23:40:47 localhost.localdomain NetworkManager[1073]: <info> [1573944047.5176] manager: NetworkManager state is now CONNECTED_SITE
在断开连接之前，普通日志会显示以下内容：
Nov 16 23:40:40 localhost.localdomain systemd[1626]: Starting Tracker metadata database store and lookup manager...
Nov 16 23:40:40 localhost.localdomain systemd[1626]: Started Tracker metadata database store and lookup manager.
Nov 16 23:40:47 localhost.localdomain NetworkManager[1073]: <info> [1573944047.5176] manager: NetworkManager state is now CONNECTED_SITE
Nov 16 23:40:47 localhost.localdomain systemd[1]: Starting Network Manager Script Dispatcher Service...
Nov 16 23:40:47 localhost.localdomain systemd[1]: Started Network Manager Script Dispatcher Service.
Nov 16 23:40:47 localhost.localdomain audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Nov 16 23:40:57 localhost.localdomain systemd[1]: NetworkManager-dispatcher.service: Succeeded.
Nov 16 23:40:57 localhost.localdomain audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Nov 16 23:41:11 localhost.localdomain tracker-store[3088]: OK
Nov 16 23:41:11 localhost.localdomain systemd[1626]: tracker-store.service: Succeeded.
在连接的创建阶段我还收到以下错误：
Nov 16 23:43:08 localhost.localdomain systemd[1]: Started Network Manager Script Dispatcher Service.
Nov 16 23:43:08 localhost.localdomain kernel: wlp5s0: deauthenticating from 54:67:51:b8:29:2a by local choice (Reason: 3=DEAUTH_LEAVING)
Nov 16 23:43:08 localhost.localdomain wpa_supplicant[1183]: wlp5s0: CTRL-EVENT-DISCONNECTED bssid=54:67:51:b8:29:2a reason=3 locally_generated=1
Nov 16 23:43:08 localhost.localdomain wpa_supplicant[1183]: dbus: wpa_dbus_property_changed: no property SessionLength in object /fi/w1/wpa_supplicant1/Interfaces/0
Nov 16 23:43:08 localhost.localdomain NetworkManager[1073]: <warn> [1573944188.6104] sup-iface[0x5559cd8fe130,wlp5s0]: connection disconnected (reason -3)
Nov 16 23:43:08 localhost.localdomain NetworkManager[1073]: <info> [1573944188.6110] device (wlp5s0): state change: deactivating -> disconnected (reason 'new-activation', sys-iface-state: 'managed')
Nov 16 23:43:08 localhost.localdomain wpa_supplicant[1183]: wlp5s0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
Nov 16 23:43:08 localhost.localdomain NetworkManager[1073]: <info> [1573944188.6136] dhcp4 (wlp5s0): canceled DHCP transaction
Nov 16 23:43:08 localhost.localdomain NetworkManager[1073]: <info> [1573944188.6136] dhcp4 (wlp5s0): state changed bound -> done
Nov 16 23:43:08 localhost.localdomain wpa_supplicant[1183]: wlp5s0: CTRL-EVENT-REGDOM-CHANGE init=USER type=COUNTRY alpha2=DE
答案1
您可以尝试禁用 NetworkManager 的无线电源管理。创建一个文件：
/etc/NetworkManager/conf.d/wifi-powersave-off.conf
在文件中输入以下内容：
[connection]
# Values are 0 (use default), 1 (ignore/don't touch), 2 (disable) or 3 (enable).
wifi.powersave = 2
重新启动网络管理器：
sudo systemctl restart NetworkManager
或者您可以编辑 wi-fi 连接以关闭省电功能：
nmcli con mod your_connection_name 802-11-wireless.powersave 2
如果没有帮助，您可以尝试明确设置连接的 BSSID、IP 和网关。作为最后的手段，您可以使用 wicd 或 systemd-networkd + wpa_supplicant 替换 NetworkManager。
另外，也许您的蓝牙和 WiFi 工作在相同的频率上。暂时关闭蓝牙。
答案2
“/etc/NetworkManager/conf.d/wifi-powersave-off.conf”E212：无法打开要写入的文件
当我尝试保存文件时，它会发送此信息