Total Networking Failure after upgrade to 12.04LTS

[Colin Law]

On 28 July 2013 16:53, Graham Todd <gct7photography at gmail.com> wrote:
> On Sat, 27 Jul 2013 10:03:19 -0400
> Hal Burgiss <hal at burgiss.net> wrote:
>
>> After a server upgrade from 10.04LTS to 12.04LTS, which otherwise
>> seemed very normal, networking is non-functional. Nothing works
>> (ping, dns, ssh, etc). Cannot ping any address, even on the LAN, and
>> the system is not pingable from other systems on the LAN.
>> [snip]

>
> You seem to have tried everything I would.  I guess now's the time to
> try another distro until someone more knowledgeable that I can fin out
> what's going wrong.

No need for that yet, the guy has not yet had a chance to try booting
off the live CD to prove whether it is something that has become
mis-configured during the upgrade or is a more serious problem.

Colin