networking is getting weirder (Re: Intel X540-AT2 and Debian: intermittent connection)
On Fri, 2022-11-18 at 16:00 +0100, hw wrote:
> On Fri, 2022-11-18 at 09:35 -0500, Jeffrey Walton wrote:
> > On Mon, Nov 14, 2022 at 6:25 AM hw <hw@adminart.net> wrote:
> > >
> > > I have an X540-AT2 network card in my backup server and it worked when I
> > > was
> > > running Fedora on the server.
> > >
> > > I installed Debian on it and wanted to make backups with rsync, but the
> > > connection via this network card is now intermittent where it used to be
> > > stable
> > > with Fedora.
> >
> > Fedora uses the latest version of a package that's available at the
> > release date. Maybe Fedora was using a newer driver than Debian?
>
> Then it should have worked when I booted a Fedora live from an USB stick ...
>
> > It looks like there's several updated Linux drivers at
> > https://www.intel.com/content/www/us/en/products/sku/60020/intel-ethernet-controller-x540at2/downloads.html
> > . Maybe you can try one of the newer drivers on the Debian machine?
>
> Yep, thanks, I tried that and it didn't make a difference.
>
> I've never had a broken network card and I think it's strange that the
> connection is intermittent. If it was broken, would it have a connection at
> all? I guess my best chance is reseating the heatsink.
So I pulled the Intel card today and I don't think I can reseat the heatsink
because it's attached with pins that'll break if I try to take the heatsink off.
It looks fine anyway.
So I switched the server on without the Intel card installed and now the on-
board network card doesn't work anymore :( Ethtool says no link detected, 'ip
link' says DOWN, I can't bring the interface up. The light on the card is
green, the switch port it's connected to is green.
It was working fine yesterday. I'll plug the Intel card back in and see what
happens ... Ok, the on-board card is working again. I can't tell if the
connection is interittent now because no pings seem to go through at all.
What's going on? I'm starting to think this mainboard has issues ... I've
never seen anything like this before.
Reply to: