Just found this on the debian wikki network manager page. Might be applicable here and to various other NIC card issues I have seen here lately. http://wiki.debian.org/NetworkManager
Scroll down to the section marked "NetworkManager in Squeeze" and it says the following.. NetworkManager in Squeeze Wired Networks are Unmanaged As of Debian Squeeze, NetworkManager does not manage any interface defined in /etc/network/interfaces by default. Unmanaged devices means NetworkManager doesn't handle those network devices. This occurs when two conditions are met: The file /etc/network/interfaces contains anything about the interface, even: allow-hotplug eth0 iface eth0 inet dhcp And /etc/NetworkManager/NetworkManager.conf contains: [main] plugins=ifupdown,keyfile [ifupdown] managed=false Since network-manager version 0.8.1-4, existing wired/wireless interfaces in /etc/network/interfaces are disabled with a #NetworkManager# prefix during package installation, then re-enabled when the network-manager package is removed (Debian bug 530024). Enabling Interface Management If you want NetworkManager to handle interfaces that are enabled in /etc/network/interfaces: Set managed=true in /etc/NetworkManager/NetworkManager.conf. Restart NetworkManager: /etc/init.d/network-manager restart "Auto Ethernet" and "Auto eth0" Auto Ethernet means "Select an Ethernet interface automatically" Auto eth0 means "autconfigure the eth0 interface". I think its relative... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/677701 Title: Wired network eth0 not working with 2.6.35-22-generic and Intel e1000e driver version 1.0.2-k4 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs