On Tue, Sep 10, 2013 at 6:28 PM, Robert Holtzm <hol...@cox.net> wrote: > On Tue, Sep 10, 2013 at 04:48:03PM -0400, Patrick Wiseman wrote: >> On Tue, Sep 10, 2013 at 4:01 PM, Robert Holtzm <hol...@cox.net> wrote: >>> >>> Running updated wheezy on a thinkpad T420i w/ xfce DE. >>> >>> With great embarrassment, after stoutly defending nm, eth0 no longer >>> connects. This only happens when I run wheezy. The connection is fine >>> when I run the other distros on the hdd, squeeze and ubuntu 12.04. >>> Under wheezy it also happens when the laptop is hard wired directly to >>> the cable modem. >>> >>> looking at dmesg >>> root@localhost:/home/holtzm# tail --lines=50 /var/log/dmesg | grep eth0 >>> [ 18.864912] ADDRCONF(NETDEV_UP): eth0: link is not ready >>> >>> Looking at messages >>> root@localhost:/var/log# less messages | grep eth0 | less >>> Sep 8 15:13:25 localhost kernel: [10656.049605] e1000e: eth0 NIC Link >>> is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx >>> Sep 8 15:13:25 localhost kernel: [10656.049617] e1000e 0000:00:19.0: >>> eth0: 10/100 speed: disabling TSO >>> Notice the difference between 15:13:25 and 15:13:26. >>> >>> Don't know how to approach trouble shooting this. Any pointers >>> appreciated. >> >> This is just a stab in the dark, but is there any reference in >> /etc/network/interfaces to eth0? If so, it is not managed by nm (with >> which I, too, have never had any trouble, except very recently on a >> new 'testing' install where the problem was as I speculate yours could >> possibly be). > > # The loopback network interface > auto lo > iface lo inet loopback > > # The primary network interface > allow-hotplug eth0 > #iface eth0 inet dhcp > > When I first loaded wheezy the last line was uncommented and eth0 > wouldn't connect. After I commented it out eth0 fired right up and was > perfectly stable until the other day. As a test I tried commenting the > other line referring to eth0 with no luck.
NM will not manage a NIC with "iface ..." in "/etc/network/interfaces" if you don't have the following two settings in "/etc/NetworkManager/NetworkManager.conf": "plugins=ifupdown" in the "[main]" section and "managed=true" in the "[ifupdown]" section -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAOdo=Sz0Ej7AvdoRQk1yTfwDnCgGO5gryUXy=aGXBMo=k+n...@mail.gmail.com