release upgrade breaks internet and other things

[Liam Proven]

On Wed, 3 Oct 2018 at 19:27, Volker Wysk <post at volker-wysk.de> wrote:
>
> Hi
>
> I've done a do-release-upgrade on my 16.04 LTS system. This has broken
> the internet connection, and more. I get immediate "unknown host"
> errors when I ping to any host. When I lookup an adress in Firefox, I
> get a "Page not found, The connection to the server ... failed."
>
> Sorry, I don't know how to troubleshoot this connection problem.
>
> Where should I look..?

I had this, or something like it.

This is relevant and I think it's what I did to fix it:

https://askubuntu.com/questions/966870/dns-not-working-after-upgrade-17-04-to-17-10


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