Troubleshooting • Re: Pi5 wlan0 disappeared

Code:

$ sudo journalctl -b | grep -E "NetworkManager|wlan0"Aug 29 16:20:54 rpi-steph systemd[1]: Starting NetworkManager.service - Network Manager...Aug 29 16:20:54 rpi-steph NetworkManager[798]: <info>  [1724973654.7650] NetworkManager (version 1.42.4) is starting... (boot:c328d6a3-3ef0-4ae9-9d3b-b927dce00193)Aug 29 16:20:54 rpi-steph NetworkManager[798]: <info>  [1724973654.7651] Read config: /etc/NetworkManager/NetworkManager.conf (lib: no-mac-addr-change.conf)Aug 29 16:20:54 rpi-steph systemd[1]: Started NetworkManager.service - Network Manager.Aug 29 16:20:54 rpi-steph NetworkManager[798]: <info>  [1724973654.7719] bus-manager: acquired D-Bus service "org.freedesktop.NetworkManager"Aug 29 16:20:54 rpi-steph systemd[1]: Starting NetworkManager-wait-online.service - Network Manager Wait Online...Aug 29 16:20:54 rpi-steph NetworkManager[798]: <info>  [1724973654.8463] manager[0x5555c17b3000]: monitoring kernel firmware directory '/lib/firmware'.Aug 29 16:20:54 rpi-steph NetworkManager[798]: <info>  [1724973654.8464] monitoring ifupdown state file '/run/network/ifstate'.Aug 29 16:20:54 rpi-steph NetworkManager[798]: <info>  [1724973654.8644] hostname: hostname: using hostnamedAug 29 16:20:54 rpi-steph NetworkManager[798]: <info>  [1724973654.8644] hostname: static hostname changed from (none) to "rpi-steph"Aug 29 16:20:54 rpi-steph NetworkManager[798]: <info>  [1724973654.8736] dns-mgr: init: dns=default,systemd-resolved rc-manager=symlink (auto)Aug 29 16:20:54 rpi-steph NetworkManager[798]: <info>  [1724973654.8744] manager[0x5555c17b3000]: rfkill: Wi-Fi hardware radio set enabledAug 29 16:20:54 rpi-steph NetworkManager[798]: <info>  [1724973654.8744] manager[0x5555c17b3000]: rfkill: WWAN hardware radio set enabledAug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.0767] Loaded device plugin: NMBluezManager (/usr/lib/aarch64-linux-gnu/NetworkManager/1.42.4/libnm-device-plugin-bluetooth.so)Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.0912] Loaded device plugin: NMAtmManager (/usr/lib/aarch64-linux-gnu/NetworkManager/1.42.4/libnm-device-plugin-adsl.so)Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.1159] Loaded device plugin: NMWifiFactory (/usr/lib/aarch64-linux-gnu/NetworkManager/1.42.4/libnm-device-plugin-wifi.so)Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.1316] Loaded device plugin: NMWwanFactory (/usr/lib/aarch64-linux-gnu/NetworkManager/1.42.4/libnm-device-plugin-wwan.so)Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.2227] Loaded device plugin: NMTeamFactory (/usr/lib/aarch64-linux-gnu/NetworkManager/1.42.4/libnm-device-plugin-team.so)Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.2232] manager: rfkill: Wi-Fi enabled by radio killswitch; enabled by state fileAug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.2233] manager: rfkill: WWAN enabled by radio killswitch; enabled by state fileAug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.2242] manager: Networking is enabled by state fileAug 29 16:20:55 rpi-steph dbus-daemon[698]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.9' (uid=0 pid=798 comm="/usr/sbin/NetworkManager --no-daemon")Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.2366] settings: Loaded settings plugin: ifupdown ("/usr/lib/aarch64-linux-gnu/NetworkManager/1.42.4/libnm-settings-plugin-ifupdown.so")Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.2367] settings: Loaded settings plugin: keyfile (internal)Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.2367] ifupdown: management mode: unmanagedAug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.2367] ifupdown:       interface-parser: parsing file /etc/network/interfacesAug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.2367] ifupdown:       interface-parser: source line includes interfaces file(s) /etc/network/interfaces.d/*Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.2368] ifupdown: interfaces file /etc/network/interfaces.d/* doesn't existAug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.2368] ifupdown:       interface-parser: finished parsing file /etc/network/interfacesAug 29 16:20:55 rpi-steph systemd[1]: Starting NetworkManager-dispatcher.service - Network Manager Script Dispatcher Service...Aug 29 16:20:55 rpi-steph systemd[1]: Started NetworkManager-dispatcher.service - Network Manager Script Dispatcher Service.Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.3610] dhcp: init: Using DHCP client 'internal'Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.3617] manager: (lo): new Loopback device (/org/freedesktop/NetworkManager/Devices/1)Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.3717] device (lo): state change: unmanaged -> unavailable (reason 'connection-assumed', sys-iface-state: 'external')Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.3728] device (lo): state change: unavailable -> disconnected (reason 'connection-assumed', sys-iface-state: 'external')Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.3743] device (lo): Activation: starting connection 'lo' (5e9cca11-50ec-4aba-8c81-fcb94cd6a4b5)Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.3763] manager: (eth0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/2)Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.3784] settings: (eth0): created default wired connection 'Wired connection 1'Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.3784] device (eth0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.3983] device (lo): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'external')Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.4024] device (lo): state change: prepare -> config (reason 'none', sys-iface-state: 'external')Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.4030] device (lo): state change: config -> ip-config (reason 'none', sys-iface-state: 'external')Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.4037] device (lo): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'external')Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.4300] device (lo): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'external')Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.4302] device (lo): state change: secondaries -> activated (reason 'none', sys-iface-state: 'external')Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.4308] device (lo): Activation: successful, device activated.Aug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.5365] modem-manager: ModemManager not availableAug 29 16:20:55 rpi-steph NetworkManager[798]: <info>  [1724973655.5555] modem-manager: ModemManager now availableAug 29 16:21:01 rpi-steph NetworkManager[798]: <info>  [1724973661.3897] manager: startup completeAug 29 16:21:01 rpi-steph systemd[1]: Finished NetworkManager-wait-online.service - Network Manager Wait Online.Aug 29 16:21:05 rpi-steph NetworkManager[798]: <info>  [1724973665.2264] agent-manager: agent[bf8d24b8743b63dd,:1.36/org.freedesktop.nm-applet/1000]: agent registeredAug 29 16:21:05 rpi-steph systemd[1]: NetworkManager-dispatcher.service: Deactivated successfully.