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cat /etc/network/interfaces

# interfaces(5) file used by ifup(8) and ifdown(8)
# The loopback network interface
#auto lo
#iface lo inet loopback

auto enp0s3
iface enp0s3 inet dhcp
#iface enp0s3 inet loopback

The command to restart hangs saying this: sudo /etc/init.d/networking restart [....] Restarting networking (via systemctl): networking.service

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  • 2
    Why aren't you using Network Manager? Is this a server? Welcome to Ask Ubuntu. Also, the loopback entries for lo must not be removed.
    – chili555
    Aug 13, 2019 at 15:29
  • I did the above steps. Now I can see the three computer symbol to the top-right. But, of the 3 computer symbol, only one is lit with white X symbol. Still no internet.
    – Vis
    Aug 14, 2019 at 1:25
  • Please edit your question to show the result of these terminal commands: ip addr show and also: ping -c3 8.8.8.8
    – chili555
    Aug 14, 2019 at 15:59

2 Answers 2

Reset to default
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Comment these lines-

auto enp0s3

iface enp0s3 inet dhcp

and un-comment below lines

auto lo

iface lo inet loopback

and restart network service

systemctl restart network-manager

hope this should work for you. as your system have network manager and network manager don't manage this file-

/etc/network/interfaces

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2
  • I did the above steps. Now I can see the three computer symbol to the top-right. But, of the 3 computer symbol, only one is lit with white X symbol. Still no internet.
    – Vis
    Aug 14, 2019 at 1:24
  • I rebooted the virtual machine. Now all three computers in the top-right symbol are seen in white. But, still not internet.
    – Vis
    Aug 14, 2019 at 1:29
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Thank you both for your help. Along with the above issue, this too was happening: Internet is working, but Firefox 67 browser cannot connect after update

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