Network only works on restart

Hi. I recently bought a refurbished Dell Optiplex 7010. I installed Manjaro 20 and everything is fine, but the network only becomes available on a restart. If I boot cold - no network. If I restart - I get a network connection. I’ve used Manjaro for years, but this has got me a bit baffled. It almost sounds like a timing issue. Anyways, here’s some specs - if they help. Thanks for any help.

cat /etc/lsb-release
inxi -F
  Host: frank-optiplex7010 Kernel: 5.9.16-1-MANJARO x86_64 bits: 64 
  Desktop: Xfce 4.16.0 Distro: Manjaro Linux 
  Type: Desktop System: Dell product: OptiPlex 7010 v: 01 
  serial: <superuser required> 
  Mobo: Dell model: 0YXT71 v: A02 serial: <superuser required> BIOS: Dell 
  v: A18 date: 04/30/2014 
  Info: Quad Core model: Intel Core i5-3470 bits: 64 type: MCP cache: 
  L2: 6 MiB 
  Speed: 2793 MHz min/max: 1600/3600 MHz Core speeds (MHz): 1: 2793 2: 2389 
  3: 2272 4: 2212 
  Device-1: Intel Xeon E3-1200 v2/3rd Gen Core processor Graphics 
  driver: i915 v: kernel 
  Device-2: OmniVision Monitor Integrated Webcam type: USB 
  driver: snd-usb-audio,uvcvideo 
  Display: x11 server: X.Org 1.20.11 driver: loaded: intel 
  unloaded: modesetting resolution: 1: 1920x1080~60Hz 2: 1680x1050~60Hz 
  OpenGL: renderer: Mesa DRI Intel HD Graphics 2500 (IVB GT1) 
  v: 4.2 Mesa 21.0.3 
  Device-1: Intel 7 Series/C216 Family High Definition Audio 
  driver: snd_hda_intel 
  Device-2: OmniVision Monitor Integrated Webcam type: USB 
  driver: snd-usb-audio,uvcvideo 
  Sound Server-1: ALSA v: k5.9.16-1-MANJARO running: yes 
  Sound Server-2: PulseAudio v: 14.2 running: yes 
  Device-1: Intel 82579LM Gigabit Network driver: e1000e 
  IF: eno1 state: up speed: 100 Mbps duplex: full mac: f8:b1:56:e2:a8:11 
  Local Storage: total: 352.07 GiB used: 10.37 GiB (2.9%) 
  ID-1: /dev/sda vendor: Samsung model: MZ7LN128HCHP-000L1 size: 119.24 GiB 
  ID-2: /dev/sdb vendor: Western Digital model: WD2500AAJS-75M0A0 
  size: 232.83 GiB 
  ID-1: / size: 108.21 GiB used: 10.37 GiB (9.6%) fs: ext4 dev: /dev/sda1 
  ID-1: swap-1 type: partition size: 8.8 GiB used: 0 KiB (0.0%) 
  dev: /dev/sda2 
  System Temperatures: cpu: 29.8 C mobo: 27.8 C 
  Fan Speeds (RPM): N/A 
  Processes: 236 Uptime: 20m Memory: 7.66 GiB used: 2.23 GiB (29.1%) 
  Shell: Bash inxi: 3.3.04 


I recommend switching the kernel to a supported one and not EOL.
Try the 5.12 for example, or 5.4 as is LTS.

uname -a
Linux frank-optiplex7010 5.12.2-1-MANJARO #1 SMP PREEMPT Fri May 7 17:53:15 UTC 2021 x86_64 GNU/Linux

Still no network on boot - only on restart.

Any others suggestions?

I think it may have to do with the BIOS. The computer has an integrated NIC. In the BIOS, there are options for the Integrated NIC:

Enabled w/PXE
Enabled w/ImageServer

If I set it to Disabled or Enabled while doing a restart - I don’t get a network connection. If I choose Enabled w/PXE while doing a restart - I get a network connection.

Does this sound like anything useful?

Maybe you have to go by this, and don’t touch the BIOS settings

1 Like

The problem did seem to be BIOS related. We had a bad storm, last, and I unplugged our router and computer. This morning, as the computer was booting, I noticed that the BIOS was searching for a DHCP network address. When I logged into Manjaro, I had a network connection.

I suggest to always look into the settings of the BIOS, that’s one of the most important thing I always forget when I have problems which is not resolved by drivers, scripts or etc. On my Lan Problem above, the issue was existing on the bios since I am using an HP laptop now vs asus last time which has no much of an option, i believe It was Aptio and I was overwhelmed on using a new brand of Laptop and they differ in in BIOS, my old bios has no network control while this hp one has. Unless the drivers are confirmed to be working and not BIOS related one, you might just have a hardware issue after all which can be diagnosed my swapping something known to be functional.