I am on Ubuntu 16.04. I recently upgraded using these commands:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get autoremove
sudo apt-get clean

After that I just restarted my system. After restart my Network is not working at all -- no WiFi and no Ethernet.

I tried many options after searching online.

I tried all the options from here: Ethernet device not managed. The most recommended option,

sudo touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf

is also not working.

here is the output of ifconfig command

$ ifconfig
lo        Link encap:Local Loopback  
          inet addr:  Mask:
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:596 errors:0 dropped:0 overruns:0 frame:0
          TX packets:596 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:44384 (44.3 KB)  TX bytes:44384 (44.3 KB)

Please help

Thanks in advance!!!

  • And what does your ifconfig and cat /etc/network/interfaces say? Maybe it has do to something with the often mentioned change from e.g. eth0 to enp3s0 interface naming – derHugo Jun 15 '17 at 18:11
  • added ifconfig result @derHugo – Akshay Khale Jun 17 '17 at 2:51
  • Check boot.log for errors in the network initialisation – TrevorN Jun 17 '17 at 5:13
  • Please add output of cat /etc/network/interfaces and sudo service networking status – derHugo Jun 17 '17 at 11:11

Try using:

sudo nmcli network on

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