On Sat, 30 Jan 2016 19:31:51 +0200 David Baron <d_ba...@012.net.il> wrote:
> > Hi. > > > > On Fri, Jan 29, 2016 at 10:30:26AM +0200, David Baron wrote: > > > Note: The reported dmesg sequence is on start up, not on expiry problem. > > > > > > ~$ sudo ethtool eth0 > > > > > Settings for eth0: > > <skip> > > > > > Link partner advertised auto-negotiation: Yes > > > > <skip> > > > > > ~$ sudo ethtool eth1 > > > > > Settings for eth1: > > <skip> > > > > > Attempts to set values get "cannot advertise ..." > > > > This is to be expected. You cannot force speed or duplex on a NIC unless > > you turn auto-negotiation off first. > > > > So start with "ethtool -s eth0 autoneg off" first. > > > > And you *did* try using a different cable, do you? > > > > Reco > > Cable was tried. > I have set autoneg off, see what happens. > How do I make such a setting persistant? /usr/share/doc/ethtool/README.Debian contains a fine example of such setting: iface eth0 inet dhcp link-speed 100 link-duplex full ethernet-autoneg off Reco