No network connection at boot

After login, at startup, there is no network connection.
Skärmbild_2021-06-23_05-12-37
I always have to re-boot, to get the network connection.
Skärmbild_2021-06-23_05-09-11
It is always like this, since about a month ago, when an electrician was here and switched the power off to the building, i.e. the computer was on and running at the time.
But a journaling file system should not be affected, should it?
The re-boot always do the trick to get the network working, but it should not be like that.
Is there a remedy to this?

/ Hans Gatu

Can you post

inxi -Fza

on console ?

In terminal:

inxi -Fza

System:
  Kernel: 5.10.42-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.10-x86_64 
  root=UUID=cf959ba4-fc5d-42a1-ba81-ebbeb1da6e3d rw quiet 
  resume=UUID=7631854e-61d1-4394-890a-ad5a5e608a46 
  Desktop: Xfce 4.16.0 tk: Gtk 3.24.29 info: xfce4-panel wm: xfwm4 vt: 1 
  dm: LightDM 1.30.0 Distro: Manjaro Linux base: Arch Linux 
Machine:
  Type: Desktop System: Dell product: OptiPlex 790 v: 01 serial: <filter> 
  Chassis: type: 15 serial: <filter> 
  Mobo: Dell model: 0D28YY v: A00 serial: <filter> BIOS: Dell v: A18 
  date: 09/24/2013 
CPU:
  Info: Quad Core model: Intel Core i5-2400 bits: 64 type: MCP 
  arch: Sandy Bridge family: 6 model-id: 2A (42) stepping: 7 microcode: 2F 
  cache: L2: 6 MiB 
  flags: avx lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 24755 
  Speed: 1867 MHz min/max: 1600/3400 MHz Core speeds (MHz): 1: 1867 2: 1634 
  3: 1645 4: 1729 
  Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled 
  Type: l1tf 
  mitigation: PTE Inversion; VMX: conditional cache flushes, SMT disabled 
  Type: mds mitigation: Clear CPU buffers; SMT disabled 
  Type: meltdown mitigation: PTI 
  Type: spec_store_bypass 
  mitigation: Speculative Store Bypass disabled via prctl and seccomp 
  Type: spectre_v1 
  mitigation: usercopy/swapgs barriers and __user pointer sanitization 
  Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional, 
  IBRS_FW, STIBP: disabled, RSB filling 
  Type: srbds status: Not affected 
  Type: tsx_async_abort status: Not affected 
Graphics:
  Device-1: AMD Oland [Radeon HD 8570 / R5 430 OEM / R7 240/340 / Radeon 520 
  OEM] 
  vendor: Dell driver: radeon v: kernel alternate: amdgpu bus-ID: 01:00.0 
  chip-ID: 1002:6611 class-ID: 0300 
  Display: x11 server: X.Org 1.20.11 driver: loaded: ati,radeon 
  unloaded: modesetting alternate: fbdev,vesa display-ID: :0.0 screens: 1 
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.0x11.2") 
  s-diag: 582mm (22.9") 
  Monitor-1: DVI-0 res: 1920x1080 hz: 60 dpi: 92 
  size: 531x299mm (20.9x11.8") diag: 609mm (24") 
  OpenGL: renderer: AMD OLAND (DRM 2.50.0 5.10.42-1-MANJARO LLVM 12.0.0) 
  v: 4.5 Mesa 21.1.2 direct render: Yes 
Audio:
  Device-1: Intel 6 Series/C200 Series Family High Definition Audio 
  vendor: Dell driver: snd_hda_intel v: kernel bus-ID: 00:1b.0 
  chip-ID: 8086:1c20 class-ID: 0403 
  Device-2: AMD Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000 
  Series] 
  vendor: Dell driver: snd_hda_intel v: kernel bus-ID: 01:00.1 
  chip-ID: 1002:aab0 class-ID: 0403 
  Sound Server-1: ALSA v: k5.10.42-1-MANJARO running: yes 
  Sound Server-2: sndio v: N/A running: no 
  Sound Server-3: JACK v: 1.9.18 running: no 
  Sound Server-4: PulseAudio v: 14.2 running: yes 
  Sound Server-5: PipeWire v: 0.3.30 running: no 
Network:
  Device-1: Intel 82579LM Gigabit Network vendor: Dell driver: e1000e 
  v: kernel port: 4040 bus-ID: 00:19.0 chip-ID: 8086:1502 class-ID: 0200 
  IF: eno1 state: up speed: 1000 Mbps duplex: full mac: <filter> 
Drives:
  Local Storage: total: 931.51 GiB used: 412.76 GiB (44.3%) 
  SMART Message: Required tool smartctl not installed. Check --recommends 
  ID-1: /dev/sda maj-min: 8:0 vendor: Toshiba model: HDWD110 
  size: 931.51 GiB block-size: physical: 4096 B logical: 512 B 
  speed: 6.0 Gb/s rotation: 7200 rpm serial: <filter> rev: A8J0 scheme: MBR 
Partition:
  ID-1: / raw-size: 923.5 GiB size: 908.01 GiB (98.32%) 
  used: 411.59 GiB (45.3%) fs: ext4 dev: /dev/sda1 maj-min: 8:1 
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default) 
  ID-1: swap-1 type: partition size: 8.01 GiB used: 1.17 GiB (14.6%) 
  priority: -2 dev: /dev/sda2 maj-min: 8:2 
Sensors:
  System Temperatures: cpu: 42.0 C mobo: N/A gpu: radeon temp: 44.0 C 
  Fan Speeds (RPM): N/A 
Info:
  Processes: 202 Uptime: 11h 23m wakeups: 0 Memory: 3.8 GiB 
  used: 2.8 GiB (73.7%) Init: systemd v: 248 tool: systemctl Compilers: 
  gcc: 11.1.0 alt: 10 clang: 12.0.0 Packages: pacman: 2379 lib: 551 
  flatpak: 0 Shell: Bash v: 5.1.8 running-in: xfce4-terminal inxi: 3.3.04 

/ Hans Gatu

Is this a dual boot PC? If yes, switch off Fastboot in Windows.

Also, check all fastboot options in your firmware and switch them off.

There is no M$ in my house.
No dual boot.
Manjaro Linux only.

/ Hans Gatu

Then post

systemctl

in terminal:

systemctl
  UNIT
  proc-sys-fs-binfmt_misc.automount
  sys-devices-pci0000:00-0000:00:01.0-0000:01:00.1-sound-card1-controlC1.device>
  sys-devices-pci0000:00-0000:00:19.0-net-eno1.device
  sys-devices-pci0000:00-0000:00:1b.0-sound-card0-controlC0.device 
  sys-devices-pci0000:00-0000:00:1d.0-usb2-2\x2d1-2\x2d1.2-2\x2d1.2:1.0-host6-t
  sys-devices-pci0000:00-0000:00:1d.0-usb2-2\x2d1-2\x2d1.2-2\x2d1.2:1.0-host6-t
  sys-devices-pci0000:00-0000:00:1d.0-usb2-2\x2d1-2\x2d1.2-2\x2d1.2:1.0-host6-t
  sys-devices-pci0000:00-0000:00:1d.0-usb2-2\x2d1-2\x2d1.2-2\x2d1.2:1.0-host6-t
  sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-
  sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-
  sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda.
  sys-devices-pci0000:00-0000:00:1f.2-ata2-host1-target1:0:0-1:0:0:0-block-sr0.
  sys-devices-platform-serial8250-tty-ttyS1.device
  sys-devices-platform-serial8250-tty-ttyS10.device
  sys-devices-platform-serial8250-tty-ttyS11.device
  sys-devices-platform-serial8250-tty-ttyS12.device
  sys-devices-platform-serial8250-tty-ttyS13.device
  sys-devices-platform-serial8250-tty-ttyS14.device
  sys-devices-platform-serial8250-tty-ttyS15.device
  sys-devices-platform-serial8250-tty-ttyS16.device
  sys-devices-platform-serial8250-tty-ttyS17.device
  sys-devices-platform-serial8250-tty-ttyS18.device

/ Hans Gatu

Can you post the output of

systemctl

on console ?

It may be better to add --no-pager

Otherwise it will be always in a pager like less and a user always needs to scroll to get the complete output.

Btw., @_HG do you use NetworkManager to set up your network?

If so please also post for an unsuccessful boot

journalctl --no-pager --no-hostname -b -u NetworkManager

It is case sensitive. The -b option means only messages from the current boot, you can use -b-1 to get the last boot.

in terminal:

journalctl --no-pager–no-hostname -b NetworkManager
journalctl: okänd flagga ”–no-pager–no-hostname”

I use the Swedish language in my distro,
okänd flagga is Swedish and means unknown flag.

/ Hans Gatu

Sorry, I missed a space.

journalctl --no-pager --no-hostname -b -u NetworkManager

also forget the -u , I really need a morning coffee

in terminal:

journalctl --no-pager --no-hostname -b -u NetworkManager
-- Journal begins at Thu 2021-05-06 05:05:26 CEST, ends at Sun 2021-06-27 10:33:42 CEST. --
jun 27 06:43:27 systemd[1]: Starting Network Manager...
jun 27 06:43:28 NetworkManager[532]: <info>  [1624769008.9030] NetworkManager (version 1.30.4-3) is starting... (for the first time)
jun 27 06:43:28 NetworkManager[532]: <info>  [1624769008.9453] Read config: /etc/NetworkManager/NetworkManager.conf (lib: 20-connectivity.conf) (etc: deepin.dde.daemon.conf)
jun 27 06:43:29 systemd[1]: Started Network Manager.
jun 27 06:43:29 NetworkManager[532]: <info>  [1624769009.5169] bus-manager: acquired D-Bus service "org.freedesktop.NetworkManager"
jun 27 06:43:29 NetworkManager[532]: <info>  [1624769009.6055] manager[0x56274525c010]: monitoring kernel firmware directory '/lib/firmware'.
jun 27 06:43:29 NetworkManager[532]: <info>  [1624769009.7237] hostname: hostname: using hostnamed
jun 27 06:43:29 NetworkManager[532]: <info>  [1624769009.7237] hostname: hostname changed from (none) to "gatu-pc"
jun 27 06:43:29 NetworkManager[532]: <info>  [1624769009.7242] dns-mgr[0x562745250170]: init: dns=default,systemd-resolved rc-manager=symlink
jun 27 06:43:29 NetworkManager[532]: <info>  [1624769009.7636] manager[0x56274525c010]: rfkill: Wi-Fi hardware radio set enabled
jun 27 06:43:29 NetworkManager[532]: <info>  [1624769009.7636] manager[0x56274525c010]: rfkill: WWAN hardware radio set enabled
jun 27 06:43:30 NetworkManager[532]: <info>  [1624769010.4054] Loaded device plugin: NMWwanFactory (/usr/lib/NetworkManager/1.30.4-3/libnm-device-plugin-wwan.so)
jun 27 06:43:30 NetworkManager[532]: <info>  [1624769010.6054] Loaded device plugin: NMTeamFactory (/usr/lib/NetworkManager/1.30.4-3/libnm-device-plugin-team.so)
jun 27 06:43:30 NetworkManager[532]: <info>  [1624769010.7060] Loaded device plugin: NMWifiFactory (/usr/lib/NetworkManager/1.30.4-3/libnm-device-plugin-wifi.so)
jun 27 06:43:30 NetworkManager[532]: <info>  [1624769010.7964] Loaded device plugin: NMAtmManager (/usr/lib/NetworkManager/1.30.4-3/libnm-device-plugin-adsl.so)
jun 27 06:43:30 NetworkManager[532]: <info>  [1624769010.8959] Loaded device plugin: NMOvsFactory (/usr/lib/NetworkManager/1.30.4-3/libnm-device-plugin-ovs.so)
jun 27 06:43:30 NetworkManager[532]: <info>  [1624769010.9595] Loaded device plugin: NMBluezManager (/usr/lib/NetworkManager/1.30.4-3/libnm-device-plugin-bluetooth.so)
jun 27 06:43:30 NetworkManager[532]: <info>  [1624769010.9599] manager: rfkill: Wi-Fi enabled by radio killswitch; enabled by state file
jun 27 06:43:30 NetworkManager[532]: <info>  [1624769010.9601] manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
jun 27 06:43:30 NetworkManager[532]: <info>  [1624769010.9602] manager: Networking is enabled by state file
jun 27 06:43:30 NetworkManager[532]: <info>  [1624769010.9813] dhcp-init: Using DHCP client 'internal'
jun 27 06:43:31 NetworkManager[532]: <info>  [1624769011.1481] settings: Loaded settings plugin: keyfile (internal)
jun 27 06:43:31 NetworkManager[532]: <info>  [1624769011.6043] device (lo): carrier: link connected
jun 27 06:43:31 NetworkManager[532]: <info>  [1624769011.6047] manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
jun 27 06:43:31 NetworkManager[532]: <info>  [1624769011.6065] manager: (eno1): new Ethernet device (/org/freedesktop/NetworkManager/Devices/2)
jun 27 06:43:31 NetworkManager[532]: <info>  [1624769011.6076] device (eno1): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
jun 27 06:43:31 NetworkManager[532]: <info>  [1624769011.9802] ovsdb: Kunde inte ansluta: Filen eller katalogen finns inte
jun 27 06:43:31 NetworkManager[532]: <info>  [1624769011.9802] ovsdb: disconnected from ovsdb
jun 27 06:43:32 NetworkManager[532]: <info>  [1624769012.2394] modem-manager: ModemManager not available
jun 27 06:43:32 NetworkManager[532]: <info>  [1624769012.2818] modem-manager: ModemManager now available
jun 27 06:43:36 NetworkManager[532]: <info>  [1624769016.6274] device (eno1): carrier: link connected
jun 27 06:43:36 NetworkManager[532]: <info>  [1624769016.6278] device (eno1): state change: unavailable -> disconnected (reason 'carrier-changed', sys-iface-state: 'managed')
jun 27 06:43:36 NetworkManager[532]: <info>  [1624769016.6288] policy: auto-activating connection 'TrĂĄdbunden anslutning 1' (337d70f9-9842-3842-9ade-8ab64ef684b2)
jun 27 06:43:36 NetworkManager[532]: <info>  [1624769016.6296] device (eno1): Activation: starting connection 'TrĂĄdbunden anslutning 1' (337d70f9-9842-3842-9ade-8ab64ef684b2)
jun 27 06:43:36 NetworkManager[532]: <info>  [1624769016.6298] device (eno1): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
jun 27 06:43:36 NetworkManager[532]: <info>  [1624769016.6303] manager: NetworkManager state is now CONNECTING
jun 27 06:43:36 NetworkManager[532]: <info>  [1624769016.7562] device (eno1): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
jun 27 06:43:36 NetworkManager[532]: <info>  [1624769016.7572] device (eno1): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
jun 27 06:43:36 NetworkManager[532]: <info>  [1624769016.7577] dhcp4 (eno1): activation: beginning transaction (timeout in 45 seconds)
jun 27 06:43:42 NetworkManager[532]: <info>  [1624769022.2873] device (eno1): carrier: link connected
jun 27 06:43:46 NetworkManager[532]: <info>  [1624769026.1114] dhcp4 (eno1): state changed unknown -> bound, address=192.168.1.130
jun 27 06:43:46 NetworkManager[532]: <info>  [1624769026.1130] device (eno1): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
jun 27 06:43:46 NetworkManager[532]: <info>  [1624769026.1502] device (eno1): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
jun 27 06:43:46 NetworkManager[532]: <info>  [1624769026.1505] device (eno1): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
jun 27 06:43:46 NetworkManager[532]: <info>  [1624769026.1511] manager: NetworkManager state is now CONNECTED_LOCAL
jun 27 06:43:46 NetworkManager[532]: <info>  [1624769026.1525] manager: NetworkManager state is now CONNECTED_SITE
jun 27 06:43:46 NetworkManager[532]: <info>  [1624769026.1527] policy: set 'TrĂĄdbunden anslutning 1' (eno1) as default for IPv4 routing and DNS
jun 27 06:43:46 NetworkManager[532]: <info>  [1624769026.2370] device (eno1): Activation: successful, device activated.
jun 27 06:43:46 NetworkManager[532]: <info>  [1624769026.2381] manager: startup complete
jun 27 06:43:46 NetworkManager[532]: <info>  [1624769026.4021] manager: NetworkManager state is now CONNECTED_GLOBAL
jun 27 06:37:00 NetworkManager[532]: <info>  [1624768620.7580] agent-manager: agent[71803f0be334fed9,:1.30/org.freedesktop.nm-applet/1000]: agent registered
jun 27 07:06:42 NetworkManager[532]: <info>  [1624770402.8280] dhcp4 (eno1): state changed bound -> extended, address=192.168.1.130
jun 27 07:33:05 NetworkManager[532]: <info>  [1624771985.7657] dhcp4 (eno1): state changed extended -> extended, address=192.168.1.130
jun 27 08:00:22 NetworkManager[532]: <info>  [1624773622.7653] dhcp4 (eno1): state changed extended -> extended, address=192.168.1.130
jun 27 08:27:09 NetworkManager[532]: <info>  [1624775229.7965] dhcp4 (eno1): state changed extended -> extended, address=192.168.1.130
jun 27 08:54:52 NetworkManager[532]: <info>  [1624776892.7530] dhcp4 (eno1): state changed extended -> extended, address=192.168.1.130
jun 27 09:22:52 NetworkManager[532]: <info>  [1624778572.7636] dhcp4 (eno1): state changed extended -> extended, address=192.168.1.130
jun 27 09:50:20 NetworkManager[532]: <info>  [1624780220.7977] dhcp4 (eno1): state changed extended -> extended, address=192.168.1.130
jun 27 10:17:32 NetworkManager[532]: <info>  [1624781852.7464] dhcp4 (eno1): state changed extended -> extended, address=192.168.1.130

and

journalctl --no-pager --no-hostname -b-1 -u NetworkManager
-- Journal begins at Thu 2021-05-06 05:05:26 CEST, ends at Sun 2021-06-27 10:36:20 CEST. --
jun 27 06:41:36 systemd[1]: Starting Network Manager...
jun 27 06:41:38 NetworkManager[531]: <info>  [1624768898.2134] NetworkManager (version 1.30.4-3) is starting... (for the first time)
jun 27 06:41:38 NetworkManager[531]: <info>  [1624768898.2373] Read config: /etc/NetworkManager/NetworkManager.conf (lib: 20-connectivity.conf) (etc: deepin.dde.daemon.conf)
jun 27 06:41:39 systemd[1]: Started Network Manager.
jun 27 06:41:39 NetworkManager[531]: <info>  [1624768899.7828] bus-manager: acquired D-Bus service "org.freedesktop.NetworkManager"
jun 27 06:41:39 NetworkManager[531]: <info>  [1624768899.9899] manager[0x563f0d9f80c0]: monitoring kernel firmware directory '/lib/firmware'.
jun 27 06:41:40 NetworkManager[531]: <info>  [1624768900.1335] hostname: hostname: using hostnamed
jun 27 06:41:40 NetworkManager[531]: <info>  [1624768900.1336] hostname: hostname changed from (none) to "gatu-pc"
jun 27 06:41:40 NetworkManager[531]: <info>  [1624768900.1340] dns-mgr[0x563f0d9ee130]: init: dns=default,systemd-resolved rc-manager=symlink
jun 27 06:41:40 NetworkManager[531]: <info>  [1624768900.2229] manager[0x563f0d9f80c0]: rfkill: Wi-Fi hardware radio set enabled
jun 27 06:41:40 NetworkManager[531]: <info>  [1624768900.2229] manager[0x563f0d9f80c0]: rfkill: WWAN hardware radio set enabled
jun 27 06:41:40 NetworkManager[531]: <info>  [1624768900.8993] Loaded device plugin: NMWwanFactory (/usr/lib/NetworkManager/1.30.4-3/libnm-device-plugin-wwan.so)
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.1731] Loaded device plugin: NMTeamFactory (/usr/lib/NetworkManager/1.30.4-3/libnm-device-plugin-team.so)
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.1907] Loaded device plugin: NMWifiFactory (/usr/lib/NetworkManager/1.30.4-3/libnm-device-plugin-wifi.so)
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.2226] Loaded device plugin: NMAtmManager (/usr/lib/NetworkManager/1.30.4-3/libnm-device-plugin-adsl.so)
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.2802] Loaded device plugin: NMOvsFactory (/usr/lib/NetworkManager/1.30.4-3/libnm-device-plugin-ovs.so)
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.4019] Loaded device plugin: NMBluezManager (/usr/lib/NetworkManager/1.30.4-3/libnm-device-plugin-bluetooth.so)
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.4024] manager: rfkill: Wi-Fi enabled by radio killswitch; enabled by state file
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.4025] manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.4026] manager: Networking is enabled by state file
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.4157] dhcp-init: Using DHCP client 'internal'
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.4547] settings: Loaded settings plugin: keyfile (internal)
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.8412] device (lo): carrier: link connected
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.8415] manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.9723] ovsdb: Kunde inte ansluta: Filen eller katalogen finns inte
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.9723] ovsdb: disconnected from ovsdb
jun 27 06:41:41 NetworkManager[531]: <info>  [1624768901.9736] manager: startup complete
jun 27 06:41:43 NetworkManager[531]: <info>  [1624768903.0482] modem-manager: ModemManager not available
jun 27 06:41:43 NetworkManager[531]: <info>  [1624768903.0714] modem-manager: ModemManager now available
jun 27 06:42:19 NetworkManager[531]: <info>  [1624768939.2898] agent-manager: agent[4bf7f308d23846af,:1.29/org.freedesktop.nm-applet/1000]: agent registered
jun 27 06:42:46 NetworkManager[531]: <info>  [1624768966.6924] modem-manager: ModemManager no longer available
jun 27 06:42:46 systemd[1]: Stopping Network Manager...
jun 27 06:42:46 NetworkManager[531]: <info>  [1624768966.9112] caught SIGTERM, shutting down normally.
jun 27 06:42:47 NetworkManager[531]: <info>  [1624768967.6149] exiting (success)
jun 27 06:42:47 systemd[1]: NetworkManager.service: Deactivated successfully.
jun 27 06:42:47 systemd[1]: Stopped Network Manager.

/ Hans Gatu

Can you also post here

netstat -a

on console, when the computer has started (not reboot).

in terminal:

netstat -a
bash: netstat: kommandot finns inte

kommandot finns inte is Swedish and means the command does not exist.
and the result is the same, both at cold start and hot re-boot.

/ Hans Gatu

Then use

ip link show

in terminal after cold start (network not working)

ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

in terminal after hot re-boot (network working)

ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 18:03:73:ba:69:be brd ff:ff:ff:ff:ff:ff
altname enp0s25

/ Hans Gatu

Can you try to reinstall the kernel ?
Or install another kernel, like 5.4.

It is a little unusually, because the Kernel does not set up the network device. It seems like the network device wasn’t initialized from the UEFI/BIOS.

Can you compare the dmseg form the cold boot and the reboot. You need to run

sudo dmesg

it is usually a lot of output.
You can also search the journal (for example -k -g e1000e ), for both boots and maybe use -p3 or -p4 the see errors in the journal.

I have reinstalled the 5.10.42 kernel, and it made no difference.
I am afraid that installing the 5.4 kernel will break something else.

/ Hans Gatu

I mean, that you could install kernel 5.4 alongside to kernel 5.10.