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I have faced this problem of Ethernet connection failure earlier. After trying various solutions, it finally stated working. The last one was this youtube one. I agree it was not the best way to fix such a problem. So I have gone through this landmark question. Here is the wireless info paste.ubuntu.com. It seems to have collected more than I could have thought of. I have gone through the following questions

Ethernet connection Issues on Ubuntu 16.04 (Ethernet controller is different than mine, So I don't think so the solution would help.)

Tejas Shetty
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1 Answers1

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Really just a workaround solution inspired by that youtube link. It is just something to try out if you are hard-pressed for time. (Acknowledgements to my friend Surender.) So, I typed in

sudo vim /etc/resolv.conf

and edited the resulting file from this

#nameserver 10.200.1.11
nameserver 10.200.1.11
nameserver 10.200.1.11
nameserver 10.200.1.11
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1

To this

#nameserver 10.200.1.11
#nameserver 10.200.1.11
#nameserver 10.200.1.11
#nameserver 10.200.1.11
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
#nameserver 127.0.1.1
nameserver 8.8.8.8
nameserver 8.8.4.4

After this, I entered

sudo service network-manager restart

and voila Internet works. Now, I really don't think so my answer is right. I mean it's obvious, isn't it? I am editing a file which has a line

DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN

Obviously, this will fail again when I restart my computer. So, I think I need to do something to fix this resolvconf (note the missing "." it is not resolv.conf) or glibc. Maybe a good starting point would be resolvconf man page. I think this question here

Tejas Shetty
  • 145