Ubuntu – How to completely reset ubuntu networking settings?


I would like to reset my network settings and services entirely as if starting from scratch. I had recently installed Ubuntu a few days ago, and deleted a important boot file. After installing Ubuntu again, my network was not auto configured like my previous install. And my network did not work. Then I think I messed up the network settings too much in attempting to fix it, and now I would like to completely reset network settings. My system is an old HP Pavilion dv8 running Ubuntu 14.04 and Windows 8.1 dual boot.

Best Answer

  • Try this:

    sudo nano /etc/network/interfaces


    auto eth0
    iface eth0 inet dhcp

    eth0 is assuming that you are using an Ethernet labeled "eth0". You can confirm that with ifconfig.

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