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Re: resolv.conf problem

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In message <55e00ab7$0$23864$e4fe514c@news.xs4all.nl>
          "A. Dumas" <alexandre@dumas.fr.invalid> wrote:

> On 27-08-15 21:35, Adrian wrote:
> > Because the Ethernet connection isn't always reliable.
> > 
> > I've had problems with one of my Pis not coming online when it boots up.
> > Opinions seem to vary as why the Ethernet connection doesn't come up. In
> > the house it is fine, but when it is out in the garden, it is less than
> > evens as to whether or not it work, some days it just won't play.
> 
> Same problem here with any Pi directly connected to a Fritzbox 760  router
> oon LAN port 3. Often it's enough to dis/reconnect the ethernet  cable to
> re-establish a connection but sometimes I need to flip the  power for a
> hard reset.

x86 boxes sometimes have the LAN fail to start up properly, too.
I don't regard anything as being immune in principle.

> No such problems when connected via a small LAN switch. It has been 
> suggested that noise/grounding might be the cause and the Fritzbox can't 
> cope. It's a shame because the switch is yet another always-on power plug.

Noise and grounding are often blamed when nothing can be proved.  I've
yet to find a case where noise and/or grounding really were the cause,
though.

Ethernet is always transformer coupled at both ends, which gives
excellent noise immunity and does not place any requirement on
earthing.

Dave

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resolv.conf problem Adrian <bulleid@ku.gro.lioff> - 2015-08-21 17:01 +0100
  Re: resolv.conf problem Rob Morley <nospam@ntlworld.com> - 2015-08-21 17:12 +0100
    Re: resolv.conf problem Adrian <bulleid@ku.gro.lioff> - 2015-08-21 20:42 +0100
      Re: resolv.conf problem Roger Bell_West <roger+csrp201508@nospam.firedrake.org> - 2015-08-21 20:42 +0000
        Re: resolv.conf problem Adrian <bulleid@ku.gro.lioff> - 2015-08-21 22:32 +0100
  Re: resolv.conf problem ray carter <ray@zianet.com> - 2015-08-21 16:29 +0000
    Re: resolv.conf problem Adrian <bulleid@ku.gro.lioff> - 2015-08-21 20:42 +0100
      Re: resolv.conf problem Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2015-08-21 22:19 -0700
        Re: resolv.conf problem Adrian <bulleid@ku.gro.lioff> - 2015-08-22 20:42 +0100
          Re: resolv.conf problem Torfinn Ingolfsen <tingo@home.no> - 2015-08-23 20:57 +0200
            Re: resolv.conf problem Adrian <bulleid@ku.gro.lioff> - 2015-08-23 22:49 +0100
              Re: resolv.conf problem Morten Reistad <first@last.name.invalid> - 2015-08-24 10:42 +0200
                Re: resolv.conf problem "A. Dumas" <alexandre@dumas.fr.invalid> - 2015-08-24 11:12 +0200
                Re: resolv.conf problem Morten Reistad <first@last.name.invalid> - 2015-08-24 11:19 +0200
            Re: resolv.conf problem DisneyWizard the Fantasmic! <wiz@FANTASMIC!disneywizard.com> - 2015-08-23 20:25 -0700
              Re: resolv.conf problem Kees Theunissen <theuniss@rijnh.nl> - 2015-08-27 04:49 +0200
                Re: resolv.conf problem Adrian <bulleid@ku.gro.lioff> - 2015-08-27 20:35 +0100
                Re: resolv.conf problem "A. Dumas" <alexandre@dumas.fr.invalid> - 2015-08-28 09:16 +0200
                Re: resolv.conf problem Dave Higton <dave@davehigton.me.uk> - 2015-08-28 20:48 +0100
      Re: resolv.conf problem David <wibble@btintenet.com> - 2015-08-29 18:33 +0000
  Re: resolv.conf problem ray carter <ray@zianet.com> - 2015-08-21 16:34 +0000

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