I think this is the follow bug: http://ubuntuforums.org/showthread.php?t=538448
I solved the problem ( with Realtek 8139 driver updated to version 5.6751.822.2007) enabling the feature "Wake-on-lan after shutdown." in windows, as explained in Ubuntu Forum. bye -- Realtek 8139 ethernet interface fails in Ubuntu (and several other Linux distros) after changes made to interface by Windows Update https://bugs.launchpad.net/bugs/156496 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs