Hi, I'm experiencing the same problem. I found I have to power off the computer *and* flip the switch on the power supply to work around this issue. On my machine I guess the power supply still feeds power to the motherboard and the integrated network card even when the main power is off. Its really annoying and I feel like this is an Ubuntu driver issue because I don't have to do this when I'm restarting from Windows. I've attached the lspci output so you can see what hardware I have.
** Attachment added: "lspci-vnn.log" http://launchpadlibrarian.net/20527125/lspci-vnn.log -- Intrepid/XP Router connection lost on shutdown https://bugs.launchpad.net/bugs/296502 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