Can you attach the output /etc/network/interfaces, uname -r, and ifconfig -a.
I wouldn't think a name change would be a security issue, but eth0=>eth1 is a little strange. ** Changed in: ubuntu Status: New => Incomplete -- Network interface changes after upgrading feisty to gutsy https://bugs.launchpad.net/bugs/131541 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs