Network not launching on boot

Basically my network will not start. Can not make use of wired links.

To make it a more mind - scratcher, when starting right into recuperation, and also making use of the network console, the network shows up and also functions. Beyond recuperation absolutely nothing.

Regarding I can inform no setups transformed in between powering on and off given that last time it functioned, with the exception of an automated bit upgrade. Making use of an older bit does not appear to aid.

Additionally this equipment arrangement functioned flawlessly great for over a year with bit upgrades and also all. Network was constantly automated.

Details for adhere to up inquiries ...

Network supervisor is running.

Oddly sufficient, my network user interface was never ever begun, neither was DHCP. Where in the arrangement can I locate this?

To by hand settle the trouble:

sudo ifconfig eth0 up
sudo /etc/dhclient

What can have taken place in my config to not make this job instantly.

Details collected:

> lspci | grep net
> 6:00:19.0 Ethernet controller: Intel Corporation 82566DM-2 Gigabit Network Connection (rev 02)

Contents of/ etc/network/interfaces

auto lo
iface lo inet loopback

After including

auto eth0
iface eth0 inet dhcp

the eth0 user interface shows up, yet the dhclient does not.

- -

The trouble re - took place when awakening from rest.

2019-05-13 04:02:57
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Answers: 2

What does ifconfig -a show when it is not functioning? Exists an eth0? If it is not, I would certainly examine the components blacklists /etc/modprobe.d/blacklist*. I would certainly have anticipated the recuperation console to honour these though so going on ...

If you do have a user interface, maybe some dodgy config inside network - supervisor. Recuperation setting simply makes use of some defaults IIRC so I would certainly open the network setups (appropriate click the applet, click edit links) and also examine a couple of points:

  • Connect Automatically is examined
  • You have a MAC address
  • MTU is automated
  • 802.1 x protection is impaired
  • IPv4 is readied to Automatic (DHCP)
  • Require IPv4 is examined
  • There need to be no unique courses
  • IPv6 is readied to overlook

If ifconfig -a isn't revealing an eth0 tool, maybe something bizarrely equipment details. What does lspci | grep net show? If absolutely nothing, do you recognize what the network chipset is?

2019-05-17 17:43:17

You are most likely missing out on the line for this in the user interfaces documents. Open /etc/network/interfaces and also examine if there is a line for eth0 If not add the following:

auto eth0
iface eth0 inet dhcp

This will certainly add the eth0 interface - and also usage DHCP on boot and also wakeup.

If you are still not obtaining DHCP feedback you may additionally require to add dhcp back right into defaults:

sudo update-rc.d dhcp3-server defaults

2019-05-17 16:56:56