Your ethernet appears to be working, or at least it achieves link. What is suspicious in the dmesg log are several segfaults:
[ 153.541692] scim-bridge[5847]: segfault at 53454741 eip b7e97443 esp bf907e90 error 4 Can you boot the Live CDROM and see if you have network connectivity? -- Errors in attansic L2 "atl2" https://bugs.launchpad.net/bugs/147639 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