/e/n/i contains: auto eth0 iface eth0 inet dhcp
so assuming NetworkManager.conf contains [ifupdown] managed=false it's expected that NM doesn't manage eth0. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/374006 Title: dhcp fails, but succeeds after ifdown/ifup in rc.local Status in “network-manager” package in Ubuntu: New Bug description: Binary package hint: network-manager The bug occurred after upgrading to jaunty. I'm not sure about the network-manager, it could also be the kernel, a driver for my network card, or perhaps the cause in the reorderings done to increase the booting speed in jaunty. Also I expect this to be duplicate bug, but I couldn't determine an existing one that was really close enough. I reported this earlier at this existing report, but then found that ubuntu-bug is preferred, so I'm repeating this here: can't connect via dhcp https://bugs.launchpad.net/bugs/312157 After boot using the default kernel there is no wired connection to the internet, but everything on the local network is available. (ping by name to local machines works, but pop for email fails.) If I did not have another machine on the local network, I would have had no way to know how to fix this, as this isolates the upgraded machine from the internet. I can always correct this by doing: sudo ifdown eth0 sudo ifup eth0 Since this is repeatable, I'd like to hunt it down to the source of the problem, but I have no idea how to proceed. The network icon in the system tray does not show an active network (neither wired nor wireless) before and after the ifdown/ifup fix. Any suggestions as to what I could do to fix this? ProblemType: Bug Architecture: i386 DistroRelease: Ubuntu 9.04 Gconf: Package: network-manager 0.7.1~rc4.1.cf199a964-0ubuntu2 ProcEnviron: PATH=(custom, user) LANG=nl_NL.UTF-8 SHELL=/bin/bash SourcePackage: network-manager Uname: Linux 2.6.28-11-generic i686 WpaSupplicantLog: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/374006/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp