我正在使用 Ubuntu 20.04.2 LTS。内核：5.4.0-65-generic
我无法连接我的 wifi 适配器。每次我尝试连接时，/var/log/syslog 中都会显示这些行。
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.3710] Config: added 'ssid' value 'HUAWEI-m33t-5G'
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.3710] Config: added 'scan_ssid' value '1'
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.3710] Config: added 'bgscan' value 'simple:30:-70:86400'
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.3710] Config: added 'key_mgmt' value 'WPA-PSK WPA-PSK-SHA256 FT-PSK'
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.3710] Config: added 'auth_alg' value 'OPEN'
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.3710] Config: added 'psk' value '<hidden>'
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.4061] device (wlp1s0): supplicant interface state: ready -> authenticating
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.4061] device (p2p-dev-wlp1s0): supplicant management interface state: ready -> authenticating
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.4120] device (wlp1s0): supplicant interface state: authenticating -> associating
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.4120] device (p2p-dev-wlp1s0): supplicant management interface state: authenticating -> associating
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.4277] device (wlp1s0): supplicant interface state: associating -> associated
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.4278] device (p2p-dev-wlp1s0): supplicant management interface state: associating -> associated
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.4435] device (wlp1s0): supplicant interface state: associated -> 4-way handshake
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.4435] device (p2p-dev-wlp1s0): supplicant management interface state: associated -> 4-way handshake
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.4647] device (wlp1s0): supplicant interface state: 4-way handshake -> completed
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.4648] device (wlp1s0): Activation: (wifi) Stage 2 of 5 (Device Configure) successful. Connected to wireless network "HUAWEI-m33t-5G"
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.4648] device (p2p-dev-wlp1s0): supplicant management interface state: 4-way handshake -> completed
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.4649] device (wlp1s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.4653] dhcp4 (wlp1s0): activation: beginning transaction (timeout in 45 seconds)
Feb 17 00:55:06 ws16-silhavik NetworkManager[5597]: <info> [1613519706.5089] dhcp4 (wlp1s0): state changed unknown -> expire
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7427] dhcp4 (wlp1s0): option dhcp_lease_time => '259200'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7428] dhcp4 (wlp1s0): option domain_name_servers => '192.168.100.1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7428] dhcp4 (wlp1s0): option expiry => '1613778908'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7429] dhcp4 (wlp1s0): option ip_address => '192.168.100.16'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7429] dhcp4 (wlp1s0): option requested_broadcast_address => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7429] dhcp4 (wlp1s0): option requested_domain_name => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7429] dhcp4 (wlp1s0): option requested_domain_name_servers => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7429] dhcp4 (wlp1s0): option requested_domain_search => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7429] dhcp4 (wlp1s0): option requested_host_name => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7430] dhcp4 (wlp1s0): option requested_interface_mtu => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7430] dhcp4 (wlp1s0): option requested_ms_classless_static_routes => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7430] dhcp4 (wlp1s0): option requested_nis_domain => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7430] dhcp4 (wlp1s0): option requested_nis_servers => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7430] dhcp4 (wlp1s0): option requested_ntp_servers => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7431] dhcp4 (wlp1s0): option requested_rfc3442_classless_static_routes => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7431] dhcp4 (wlp1s0): option requested_root_path => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7431] dhcp4 (wlp1s0): option requested_routers => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7431] dhcp4 (wlp1s0): option requested_static_routes => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7431] dhcp4 (wlp1s0): option requested_subnet_mask => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7431] dhcp4 (wlp1s0): option requested_time_offset => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7432] dhcp4 (wlp1s0): option requested_wpad => '1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7432] dhcp4 (wlp1s0): option routers => '192.168.100.1'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7432] dhcp4 (wlp1s0): option subnet_mask => '255.255.255.0'
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7432] dhcp4 (wlp1s0): state changed expire -> bound
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7491] device (wlp1s0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
Feb 17 00:55:08 ws16-silhavik dbus-daemon[1044]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.131' (uid=0 pid=5597 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
Feb 17 00:55:08 ws16-silhavik systemd[1]: Starting Network Manager Script Dispatcher Service...
Feb 17 00:55:08 ws16-silhavik systemd[1]: Started Network Manager Script Dispatcher Service.
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7817] device (wlp1s0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7819] device (wlp1s0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7824] manager: NetworkManager state is now CONNECTED_LOCAL
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7914] manager: NetworkManager state is now CONNECTED_SITE
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7916] policy: set 'HUAWEI-m33t-5G' (wlp1s0) as default for IPv4 routing and DNS
Feb 17 00:55:08 ws16-silhavik NetworkManager[5597]: <info> [1613519708.7922] device (wlp1s0): Activation: successful, device activated.
Feb 17 00:55:09 ws16-silhavik NetworkManager[5597]: <info> [1613519709.4119] manager: NetworkManager state is now CONNECTED_GLOBAL
Feb 17 00:55:09 ws16-silhavik whoopsie[1720]: [00:55:09] The default IPv4 route is: /org/freedesktop/NetworkManager/ActiveConnection/56
Feb 17 00:55:09 ws16-silhavik whoopsie[1720]: [00:55:09] Not a paid data plan: /org/freedesktop/NetworkManager/ActiveConnection/56
Feb 17 00:55:09 ws16-silhavik whoopsie[1720]: [00:55:09] Found usable connection: /org/freedesktop/NetworkManager/ActiveConnection/56
Feb 17 00:55:12 ws16-silhavik NetworkManager[5597]: <info> [1613519712.0706] dhcp6 (wlp1s0): activation: beginning transaction (timeout in 45 seconds)
Feb 17 00:55:12 ws16-silhavik NetworkManager[5597]: <info> [1613519712.0724] policy: set 'HUAWEI-m33t-5G' (wlp1s0) as default for IPv6 routing and DNS
Feb 17 00:55:12 ws16-silhavik NetworkManager[5597]: <info> [1613519712.1438] dhcp6 (wlp1s0): option dhcp6_name_servers => 'fe80::1'
Feb 17 00:55:12 ws16-silhavik NetworkManager[5597]: <info> [1613519712.1439] dhcp6 (wlp1s0): state changed unknown -> bound
**Feb 17 00:55:17 ws16-silhavik NetworkManager[5597]: <warn> [1613519717.8735] sup-iface[0x55e24cba1930,wlp1s0]: connection disconnected (reason -4)**
Feb 17 00:55:17 ws16-silhavik NetworkManager[5597]: <info> [1613519717.8952] device (wlp1s0): supplicant interface state: completed -> disconnected
Feb 17 00:55:17 ws16-silhavik NetworkManager[5597]: <info> [1613519717.8953] device (p2p-dev-wlp1s0): supplicant management interface state: completed -> disconnected
Feb 17 00:55:17 ws16-silhavik NetworkManager[5597]: <info> [1613519717.9788] device (wlp1s0): supplicant interface state: disconnected -> scanning
Feb 17 00:55:17 ws16-silhavik NetworkManager[5597]: <info> [1613519717.9789] device (p2p-dev-wlp1s0): supplicant management interface state: disconnected -> scanning
Feb 17 00:55:22 ws16-silhavik systemd[1]: NetworkManager-dispatcher.service: Succeeded.
Feb 17 00:55:33 ws16-silhavik NetworkManager[5597]: <warn> [1613519733.0658] device (wlp1s0): link timed out.
Feb 17 00:55:33 ws16-silhavik NetworkManager[5597]: <info> [1613519733.0692] device (wlp1s0): state change: activated -> failed (reason 'ssid-not-found', sys-iface-state: 'managed')
Feb 17 00:55:33 ws16-silhavik NetworkManager[5597]: <info> [1613519733.0698] manager: NetworkManager state is now DISCONNECTED
Feb 17 00:55:33 ws16-silhavik NetworkManager[5597]: <warn> [1613519733.0705] device (wlp1s0): Activation: failed for connection 'HUAWEI-m33t-5G'
Feb 17 00:55:33 ws16-silhavik NetworkManager[5597]: <info> [1613519733.0712] device (wlp1s0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
Feb 17 00:55:33 ws16-silhavik dbus-daemon[1044]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.131' (uid=0 pid=5597 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
Feb 17 00:55:33 ws16-silhavik systemd[1]: Starting Network Manager Script Dispatcher Service...
**Feb 17 00:55:33 ws16-silhavik org.kde.kdeconnect.daemon.desktop[2687]: "No such interface “org.freedesktop.DBus.Properties” on object at path** /org/freedesktop/NetworkManager/ActiveConnection/56"
Feb 17 00:55:33 ws16-silhavik systemd[1]: Started Network Manager Script Dispatcher Service.
Feb 17 00:55:33 ws16-silhavik NetworkManager[5597]: <info> [1613519733.1068] dhcp4 (wlp1s0): canceled DHCP transaction
Feb 17 00:55:33 ws16-silhavik NetworkManager[5597]: <info> [1613519733.1068] dhcp4 (wlp1s0): state changed bound -> done
Feb 17 00:55:33 ws16-silhavik NetworkManager[5597]: <info> [1613519733.1070] dhcp6 (wlp1s0): canceled DHCP transaction
Feb 17 00:55:33 ws16-silhavik NetworkManager[5597]: <info> [1613519733.1070] dhcp6 (wlp1s0): state changed bound -> done
Feb 17 00:55:37 ws16-silhavik NetworkManager[5597]: <info> [1613519737.1337] device (wlp1s0): supplicant interface state: scanning -> inactive
Feb 17 00:55:37 ws16-silhavik NetworkManager[5597]: <info> [1613519737.1341] device (p2p-dev-wlp1s0): supplicant management interface state: scanning -> inactive
我认为这可能是某些接口或其他东西的问题。它可以在任何其他设备（iPhone、Mac）上正常工作，但唯一的问题是我的装有 Ubuntu 20.04 的戴尔电脑。
我不知道这是否相关，但每次我尝试连接 wifi 时，其他设备都会断开连接几分钟。看来我的尝试重新启动了 wifi 适配器。当我尝试有线连接时也发生了同样的事情。
感谢您的任何建议。
答案1
关于其他设备如何能连接到无线接入点，但是您的（戴尔）使用 Ubuntu不能非常有用。但这可能有几个原因：一个可能是您要连接的网络的通道使用率过高，另一个可能是 /etc/NetworkManager/NetworkManager.conf 使用（配置为）wpa-supplicant 而不是 iwd 存在故障。
1.您尝试连接的 SSID 在该特定信道设置上有太多用户，并且有来自其他无线接入点的干扰。
您可以通过输入以下内容来查找：sudo nmcli dev wifi list
这将允许您观察各种网络的设置信道和信号强度。
2.无论出于什么原因，您设置中的网络管理器无法很好地处理 wpa-supplicant，而是需要 iwd。
首先使用安装 iwd，然后通过下一步打开并添加到sudo apt-get update && sudo apt-get install iwd
确保连接到服务sudo systemctl enable iwd.service
sudo systemctl start iwd.service/etc/NetworkManager/NetworkManager.confwifi.backend=iwd[设备]部分。
如果所有更改都已保存，则重新启动后将产生正连接。如果没有，则可能还需要修改同一文件中的一些 Network-Manager 参数，从而阻止连接。
答案2
问题解决了一半。现在我可以通过 2G 网络连接到 wifi，但 5G 网络仍然无法使用。
插入以太网或尝试 5G 网络时，重新启动 wifi 适配器（wifi 网络 2G、5G 几分钟内不可用）也会出现同样的问题。
我认为流量大时也没有问题。我在晚上没有人连接时测试了这个问题，这是我们的家庭网络。
成功连接到 2G 并尝试切换到 5G 后有日志。
Feb 18 02:08:19 ws16-silhavik NetworkManager[1076]: <info> [1613610499.3353] audit: op="radio-control" arg="wireless-enabled" pid=2728 uid=1000 result="success"
Feb 18 02:08:19 ws16-silhavik NetworkManager[1076]: <info> [1613610499.3409] manager: rfkill: Wi-Fi now enabled by radio killswitch
Feb 18 02:08:19 ws16-silhavik NetworkManager[1076]: <info> [1613610499.5875] device (wlan0): new IWD device state is disconnected
Feb 18 02:08:19 ws16-silhavik NetworkManager[1076]: <info> [1613610499.5878] device (wlan0): state change: unavailable -> disconnected (reason 'supplicant-available', sys-iface-state: 'managed')
Feb 18 02:08:20 ws16-silhavik NetworkManager[1076]: <info> [1613610500.8431] policy: auto-activating connection 'HUAWEI-m33t-2G' (6f9081fe-6a97-4a52-a069-10bd0964b0ab)
Feb 18 02:08:20 ws16-silhavik NetworkManager[1076]: <info> [1613610500.8440] device (wlan0): Activation: starting connection 'HUAWEI-m33t-2G' (6f9081fe-6a97-4a52-a069-10bd0964b0ab)
Feb 18 02:08:20 ws16-silhavik NetworkManager[1076]: <info> [1613610500.8478] device (wlan0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Feb 18 02:08:20 ws16-silhavik NetworkManager[1076]: <info> [1613610500.8488] manager: NetworkManager state is now CONNECTING
Feb 18 02:08:20 ws16-silhavik NetworkManager[1076]: <info> [1613610500.8499] device (wlan0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Feb 18 02:08:20 ws16-silhavik NetworkManager[1076]: <info> [1613610500.8664] device (wlan0): new IWD device state is connecting
Feb 18 02:08:20 ws16-silhavik NetworkManager[1076]: <info> [1613610500.9328] device (wlan0): Activation: (wifi) Stage 2 of 5 (Device Configure) successful. Connected to 'HUAWEI-m33t-2G'.
Feb 18 02:08:20 ws16-silhavik NetworkManager[1076]: <info> [1613610500.9331] device (wlan0): new IWD device state is connected
Feb 18 02:08:20 ws16-silhavik NetworkManager[1076]: <info> [1613610500.9332] device (wlan0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Feb 18 02:08:20 ws16-silhavik NetworkManager[1076]: <info> [1613610500.9336] dhcp4 (wlan0): activation: beginning transaction (timeout in 45 seconds)
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0501] dhcp4 (wlan0): option dhcp_lease_time => '259200'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0501] dhcp4 (wlan0): option domain_name_servers => '192.168.100.1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option expiry => '1613869700'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option ip_address => '192.168.100.16'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_broadcast_address => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_domain_name => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_domain_name_servers => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_domain_search => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_host_name => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_interface_mtu => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_ms_classless_static_routes => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_nis_domain => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_nis_servers => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_ntp_servers => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_rfc3442_classless_static_routes => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_root_path => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_routers => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_static_routes => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0502] dhcp4 (wlan0): option requested_subnet_mask => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0503] dhcp4 (wlan0): option requested_time_offset => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0503] dhcp4 (wlan0): option requested_wpad => '1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0503] dhcp4 (wlan0): option routers => '192.168.100.1'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0503] dhcp4 (wlan0): option subnet_mask => '255.255.255.0'
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0503] dhcp4 (wlan0): state changed unknown -> bound
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0515] device (wlan0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0546] device (wlan0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0548] device (wlan0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0551] manager: NetworkManager state is now CONNECTED_LOCAL
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0558] manager: NetworkManager state is now CONNECTED_SITE
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0559] policy: set 'HUAWEI-m33t-2G' (wlan0) as default for IPv4 routing and DNS
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.0563] device (wlan0): Activation: successful, device activated.
Feb 18 02:08:21 ws16-silhavik NetworkManager[1076]: <info> [1613610501.3788] manager: NetworkManager state is now CONNECTED_GLOBAL
Feb 18 02:08:21 ws16-silhavik whoopsie[1807]: [02:08:21] The default IPv4 route is: /org/freedesktop/NetworkManager/ActiveConnection/13
Feb 18 02:08:21 ws16-silhavik whoopsie[1807]: [02:08:21] Not a paid data plan: /org/freedesktop/NetworkManager/ActiveConnection/13
Feb 18 02:08:21 ws16-silhavik whoopsie[1807]: [02:08:21] Found usable connection: /org/freedesktop/NetworkManager/ActiveConnection/13
Feb 18 02:08:22 ws16-silhavik NetworkManager[1076]: <info> [1613610502.0247] dhcp6 (wlan0): activation: beginning transaction (timeout in 45 seconds)
Feb 18 02:08:22 ws16-silhavik NetworkManager[1076]: <info> [1613610502.0253] policy: set 'HUAWEI-m33t-2G' (wlan0) as default for IPv6 routing and DNS
Feb 18 02:08:22 ws16-silhavik NetworkManager[1076]: <info> [1613610502.0506] dhcp6 (wlan0): option dhcp6_name_servers => 'fe80::1'
Feb 18 02:08:22 ws16-silhavik NetworkManager[1076]: <info> [1613610502.0506] dhcp6 (wlan0): state changed unknown -> bound
Feb 18 02:08:31 ws16-silhavik NetworkManager[1076]: <info> [1613610511.9288] device (wlan0): new IWD device state is disconnected
Feb 18 02:08:31 ws16-silhavik NetworkManager[1076]: <info> [1613610511.9289] device (wlan0): state change: activated -> failed (reason 'supplicant-disconnect', sys-iface-state: 'managed')
Feb 18 02:08:31 ws16-silhavik NetworkManager[1076]: <warn> [1613610511.9300] device (wlan0): Activation: failed for connection 'HUAWEI-m33t-2G'
Feb 18 02:08:31 ws16-silhavik NetworkManager[1076]: <info> [1613610511.9318] device (wlan0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
Feb 18 02:08:31 ws16-silhavik org.kde.kdeconnect.daemon.desktop[3007]: "No such interface “org.freedesktop.DBus.Properties” on object at path /org/freedesktop/NetworkManager/ActiveConnection/13"
Feb 18 02:08:31 ws16-silhavik NetworkManager[1076]: <info> [1613610511.9745] dhcp4 (wlan0): canceled DHCP transaction
Feb 18 02:08:31 ws16-silhavik NetworkManager[1076]: <info> [1613610511.9745] dhcp4 (wlan0): state changed bound -> done
Feb 18 02:08:31 ws16-silhavik NetworkManager[1076]: <info> [1613610511.9748] dhcp6 (wlan0): canceled DHCP transaction
Feb 18 02:08:31 ws16-silhavik NetworkManager[1076]: <info> [1613610511.9748] dhcp6 (wlan0): state changed bound -> done
Feb 18 02:08:31 ws16-silhavik NetworkManager[1076]: <info> [1613610511.9851] manager: NetworkManager state is now CONNECTED_LOCAL
Feb 18 02:08:36 ws16-silhavik NetworkManager[1076]: <info> [1613610516.8269] policy: auto-activating connection 'HUAWEI-m33t-2G' (6f9081fe-6a97-4a52-a069-10bd0964b0ab)
Feb 18 02:08:36 ws16-silhavik NetworkManager[1076]: <info> [1613610516.8330] device (wlan0): Activation: starting connection 'HUAWEI-m33t-2G' (6f9081fe-6a97-4a52-a069-10bd0964b0ab)
Feb 18 02:08:36 ws16-silhavik NetworkManager[1076]: <info> [1613610516.8332] device (wlan0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Feb 18 02:08:36 ws16-silhavik NetworkManager[1076]: <info> [1613610516.8337] manager: NetworkManager state is now CONNECTING
Feb 18 02:08:36 ws16-silhavik NetworkManager[1076]: <info> [1613610516.8343] device (wlan0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.0280] device (wlan0): new IWD device state is connecting
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <error> [1613610517.0574] device (wlan0): Activation: (wifi) Network.Connect failed: GDBus.Error:net.connman.iwd.Failed: Operation failed
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.0580] device (wlan0): new IWD device state is disconnected
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.0582] device (wlan0): state change: config -> failed (reason 'no-secrets', sys-iface-state: 'managed')
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.0590] manager: NetworkManager state is now CONNECTED_LOCAL
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <warn> [1613610517.0608] device (wlan0): Activation: failed for connection 'HUAWEI-m33t-2G'
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.0614] device (wlan0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
Feb 18 02:08:37 ws16-silhavik org.kde.kdeconnect.daemon.desktop[3007]: "No such interface “org.freedesktop.DBus.Properties” on object at path /org/freedesktop/NetworkManager/ActiveConnection/14"
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.4854] device (wlan0): Activation: starting connection 'HUAWEI-m33t-5G' (2a48419e-6fea-4644-b89f-d04a820c38b4)
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.4854] audit: op="connection-activate" uuid="2a48419e-6fea-4644-b89f-d04a820c38b4" name="HUAWEI-m33t-5G" pid=2728 uid=1000 result="success"
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.4855] device (wlan0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.4858] manager: NetworkManager state is now CONNECTING
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.4861] device (wlan0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.4963] device (wlan0): new IWD device state is connecting
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <error> [1613610517.6850] device (wlan0): Activation: (wifi) Network.Connect failed: GDBus.Error:net.connman.iwd.Failed: Operation failed
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.6852] device (wlan0): new IWD device state is disconnected
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.6853] device (wlan0): state change: config -> failed (reason 'no-secrets', sys-iface-state: 'managed')
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.6855] manager: NetworkManager state is now CONNECTED_LOCAL
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <warn> [1613610517.6861] device (wlan0): Activation: failed for connection 'HUAWEI-m33t-5G'
Feb 18 02:08:37 ws16-silhavik NetworkManager[1076]: <info> [1613610517.6862] device (wlan0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
Feb 18 02:08:37 ws16-silhavik org.kde.kdeconnect.daemon.desktop[3007]: "No such interface “org.freedesktop.DBus.Properties” on object at path /org/freedesktop/NetworkManager/ActiveConnection/15"
Feb 18 02:08:41 ws16-silhavik systemd[1]: NetworkManager-dispatcher.service: Succeeded.
答案3
我在克隆的 Mint 20.3 机器上也遇到过类似的问题。当它处于非活动状态 10 分钟左右时，它会断开与 wifi 的连接。我更改了主机名和 ssh 密钥，但更改机器 ID 似乎解决了这个问题。描述如下：http://ichimusai.org/after-cloning-a-ubuntu-22-04-server/
sudo rm /etc/machine-id
sudo systemd-machine-id-setup