There seem to be lots of issues with the e1000e driver, e.g. I can't use it at full speed (bug #655967). And I've seen other reports all over the internet about this driver, although the exact symptoms seem to differ depending on the exact chip or system or kernel version (from slower speeds to no connection at all).
Maybe the same bug is causing this all, and the symptoms depend on whether you're lucky (slower connection) or not (no connection)? -- After upgrade lucid -> maverick eth0 interface is gone https://bugs.launchpad.net/bugs/591707 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs