Hello,
Désolé de ne pas avoir répondu, je suis de retour après quelques jour d’absence.
L’interface graphique est bien paramétrée comme ci-dessus.
Voici donc le contenu du journal après le boot:
sudo journalctl | grep -i network
déc. 30 17:07:09 Stephane-PC systemd[1]: Starting Network Time Synchronization...
déc. 30 17:07:09 Stephane-PC systemd[1]: Starting Raise network interfaces...
déc. 30 17:07:09 Stephane-PC systemd[1]: Started Raise network interfaces.
déc. 30 17:07:09 Stephane-PC systemd[1]: Started Network Time Synchronization.
déc. 30 17:07:09 Stephane-PC systemd[1]: Starting Network Manager...
déc. 30 17:07:09 Stephane-PC avahi-daemon[515]: Network interface enumeration completed.
déc. 30 17:07:09 Stephane-PC NetworkManager[510]: <info> [1577722029.8925] NetworkManager (version 1.14.6) is starting... (for the first time)
déc. 30 17:07:09 Stephane-PC NetworkManager[510]: <info> [1577722029.8935] Read config: /etc/NetworkManager/NetworkManager.conf (lib: no-mac-addr-change.conf)
déc. 30 17:07:09 Stephane-PC systemd[1]: Started Network Manager.
déc. 30 17:07:09 Stephane-PC systemd[1]: Reached target Network.
déc. 30 17:07:09 Stephane-PC NetworkManager[510]: <info> [1577722029.9042] bus-manager: acquired D-Bus service "org.freedesktop.NetworkManager"
déc. 30 17:07:09 Stephane-PC NetworkManager[510]: <info> [1577722029.9055] manager[0x55f8aded9020]: monitoring kernel firmware directory '/lib/firmware'.
déc. 30 17:07:09 Stephane-PC NetworkManager[510]: <info> [1577722029.9055] monitoring ifupdown state file '/run/network/ifstate'.
déc. 30 17:07:09 Stephane-PC dbus-daemon[508]: [system] Activating via systemd: service name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service' requested by ':1.11' (uid=0 pid=510 comm="/usr/sbin/NetworkManager --no-daemon ")
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1001] hostname: hostname: using hostnamed
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1002] hostname: hostname changed from (none) to "Stephane-PC"
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1004] dns-mgr[0x55f8adee40f0]: init: dns=default, rc-manager=resolvconf
déc. 30 17:07:10 Stephane-PC dbus-daemon[508]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.11' (uid=0 pid=510 comm="/usr/sbin/NetworkManager --no-daemon ")
déc. 30 17:07:10 Stephane-PC systemd[1]: Starting Network Manager Script Dispatcher Service...
déc. 30 17:07:10 Stephane-PC systemd[1]: Started Network Manager Script Dispatcher Service.
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1216] ifupdown: interface-parser: parsing file /etc/network/interfaces
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1216] ifupdown: interface-parser: source line includes interfaces file(s) /etc/network/interfaces.d/*
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <warn> [1577722030.1216] ifupdown: interfaces file /etc/network/interfaces.d/* doesn't exist
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1217] ifupdown: interface-parser: finished parsing file /etc/network/interfaces
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1217] ifupdown: management mode: unmanaged
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1217] settings: Loaded settings plugin: SettingsPluginIfupdown ("/usr/lib/x86_64-linux-gnu/NetworkManager/1.14.6/libnm-settings-plugin-ifupdown.so")
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1217] settings: Loaded settings plugin: NMSKeyfilePlugin (internal)
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1246] keyfile: new connection /etc/NetworkManager/system-connections/Connexion filaire 2.nmconnection (4800b57e-671b-3b42-b2c8-5bf79951a1d3,"Connexion filaire 2")
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1260] keyfile: new connection /etc/NetworkManager/system-connections/Connexion filaire 1.nmconnection (4a6b9475-2c0e-30d3-87e3-f197d317ae5d,"Connexion filaire 1")
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1268] manager: rfkill: WiFi enabled by radio killswitch; enabled by state file
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1270] manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1273] manager: Networking is enabled by state file
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1276] dhcp-init: Using DHCP client 'dhclient'
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1298] Loaded device plugin: NMWifiFactory (/usr/lib/x86_64-linux-gnu/NetworkManager/1.14.6/libnm-device-plugin-wifi.so)
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1307] Loaded device plugin: NMAtmManager (/usr/lib/x86_64-linux-gnu/NetworkManager/1.14.6/libnm-device-plugin-adsl.so)
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1336] Loaded device plugin: NMWwanFactory (/usr/lib/x86_64-linux-gnu/NetworkManager/1.14.6/libnm-device-plugin-wwan.so)
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1369] Loaded device plugin: NMTeamFactory (/usr/lib/x86_64-linux-gnu/NetworkManager/1.14.6/libnm-device-plugin-team.so)
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1397] Loaded device plugin: NMBluezManager (/usr/lib/x86_64-linux-gnu/NetworkManager/1.14.6/libnm-device-plugin-bluetooth.so)
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1411] device (lo): carrier: link connected
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1414] manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1440] manager: (enp4s0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/2)
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1454] device (enp4s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1483] device (enp4s0): carrier: link connected
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1517] manager: (enp6s0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/3)
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.1537] device (enp6s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.2778] device (enp4s0): state change: unavailable -> disconnected (reason 'none', sys-iface-state: 'managed')
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.2859] modem-manager: ModemManager available
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.2860] policy: auto-activating connection 'Connexion filaire 1' (4a6b9475-2c0e-30d3-87e3-f197d317ae5d)
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.2870] device (enp4s0): Activation: starting connection 'Connexion filaire 1' (4a6b9475-2c0e-30d3-87e3-f197d317ae5d)
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.2871] device (enp4s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.2875] manager: NetworkManager state is now CONNECTING
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.2877] device (enp4s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.2882] device (enp4s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.2890] dhcp4 (enp4s0): activation: beginning transaction (timeout in 45 seconds)
déc. 30 17:07:10 Stephane-PC NetworkManager[510]: <info> [1577722030.2916] dhcp4 (enp4s0): dhclient started with pid 599
déc. 30 17:07:10 Stephane-PC systemd[589]: Listening on GnuPG network certificate management daemon.
déc. 30 17:07:20 Stephane-PC systemd[1]: NetworkManager-dispatcher.service: Succeeded.
déc. 30 17:07:27 Stephane-PC systemd[797]: Listening on GnuPG network certificate management daemon.
déc. 30 17:07:34 Stephane-PC NetworkManager[510]: <info> [1577722054.3333] agent-manager: req[0x55f8adf5b9d0, :1.223/org.gnome.Shell.NetworkAgent/1000]: agent registered
déc. 30 17:07:48 Stephane-PC systemd[589]: Closed GnuPG network certificate management daemon.
déc. 30 17:07:50 Stephane-PC NetworkManager[510]: <info> [1577722070.8278] manager: sleep: sleep requested (sleeping: no enabled: yes)
déc. 30 17:07:50 Stephane-PC NetworkManager[510]: <info> [1577722070.8279] manager: NetworkManager state is now ASLEEP
déc. 30 17:07:50 Stephane-PC NetworkManager[510]: <info> [1577722070.8281] device (enp4s0): state change: ip-config -> deactivating (reason 'sleeping', sys-iface-state: 'managed')
déc. 30 17:07:50 Stephane-PC NetworkManager[510]: <info> [1577722070.8285] device (enp4s0): state change: deactivating -> disconnected (reason 'sleeping', sys-iface-state: 'managed')
déc. 30 17:07:50 Stephane-PC NetworkManager[510]: <info> [1577722070.8451] dhcp4 (enp4s0): canceled DHCP transaction, DHCP client pid 599
déc. 30 17:07:50 Stephane-PC NetworkManager[510]: <info> [1577722070.8452] dhcp4 (enp4s0): state changed unknown -> done
déc. 30 17:07:50 Stephane-PC dbus-daemon[508]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.11' (uid=0 pid=510 comm="/usr/sbin/NetworkManager --no-daemon ")
déc. 30 17:07:50 Stephane-PC systemd[1]: Starting Network Manager Script Dispatcher Service...
déc. 30 17:07:50 Stephane-PC NetworkManager[510]: <info> [1577722070.8578] device (enp4s0): state change: disconnected -> unmanaged (reason 'sleeping', sys-iface-state: 'managed')
déc. 30 17:07:50 Stephane-PC NetworkManager[510]: <info> [1577722070.8600] manager: startup complete
déc. 30 17:07:50 Stephane-PC systemd[1]: Started Network Manager Script Dispatcher Service.
déc. 30 17:08:04 Stephane-PC NetworkManager[510]: <info> [1577722084.8928] manager: sleep: wake requested (sleeping: yes enabled: yes)
déc. 30 17:08:04 Stephane-PC NetworkManager[510]: <info> [1577722084.8929] device (enp6s0): state change: unavailable -> unmanaged (reason 'sleeping', sys-iface-state: 'managed')
déc. 30 17:08:04 Stephane-PC NetworkManager[510]: <info> [1577722084.9117] device (enp4s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'managed')
déc. 30 17:08:04 Stephane-PC NetworkManager[510]: <info> [1577722084.9139] device (enp6s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'managed')
déc. 30 17:08:05 Stephane-PC NetworkManager[510]: <info> [1577722085.0296] manager: NetworkManager state is now DISCONNECTED
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.1469] device (enp4s0): carrier: link connected
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.1475] device (enp4s0): state change: unavailable -> disconnected (reason 'carrier-changed', sys-iface-state: 'managed')
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.1505] policy: auto-activating connection 'Connexion filaire 1' (4a6b9475-2c0e-30d3-87e3-f197d317ae5d)
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.1517] device (enp4s0): Activation: starting connection 'Connexion filaire 1' (4a6b9475-2c0e-30d3-87e3-f197d317ae5d)
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.1519] device (enp4s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.1523] manager: NetworkManager state is now CONNECTING
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.1526] device (enp4s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.1533] device (enp4s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.1536] dhcp4 (enp4s0): activation: beginning transaction (timeout in 45 seconds)
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.1653] dhcp4 (enp4s0): dhclient started with pid 1486
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2329] dhcp4 (enp4s0): address 192.168.1.100
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2330] dhcp4 (enp4s0): plen 24 (255.255.255.0)
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2330] dhcp4 (enp4s0): gateway 192.168.1.1
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2331] dhcp4 (enp4s0): lease time 86400
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2332] dhcp4 (enp4s0): nameserver '192.168.1.1'
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2332] dhcp4 (enp4s0): domain name 'home'
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2332] dhcp4 (enp4s0): state changed unknown -> bound
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2387] device (enp4s0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2395] device (enp4s0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2397] device (enp4s0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2405] manager: NetworkManager state is now CONNECTED_LOCAL
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2445] manager: NetworkManager state is now CONNECTED_SITE
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2447] policy: set 'Connexion filaire 1' (enp4s0) as default for IPv4 routing and DNS
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2479] device (enp4s0): Activation: successful, device activated.
déc. 30 17:08:06 Stephane-PC NetworkManager[510]: <info> [1577722086.2503] manager: NetworkManager state is now CONNECTED_GLOBAL
déc. 30 17:08:15 Stephane-PC systemd[1]: NetworkManager-dispatcher.service: Succeeded.
déc. 30 17:08:27 Stephane-PC NetworkManager[510]: <info> [1577722107.7498] agent-manager: req[0x7f4c6c002820, :1.223/org.gnome.Shell.NetworkAgent/1000]: agent registered
Pour info, il a fallu que je passe par une mise en veille pour que le réseau s’active…
Merci de me dire si quelque chose semble bizarre dans ce journal.