Public bug reported: I upgraded my 16.04 to 18.04 before the official release. After the upgrade I noticed that I don't have internet access. The wired network and the wifi settings looked good, but the internet didn't work. After the login the system always switched itself into airplane mode. I tethered the network via USB and Bluetooth by my mobile but they also didn't work.
I found a useful answer from @andrew-woodhead666: https://answers.launchpad.net/ubuntu/+question/665374 it seems this bug is still not fixed for the upgraded dists in the main release and affects a few dozens of ubuntu users. https://askubuntu.com/questions/1021884/no-internet-after-upgrade-from-16-04-to-18-04 ** Affects: ubuntu Importance: Undecided Status: New ** Description changed: I upgraded my 16.04 to 18.04 before the official release. After the upgrade I noticed that I don't have internet access. The wired network and the wifi settings looked good, but the internet didn't work. After the login the system always switched itself into airplane mode. I tethered the network via USB and Bluetooth by my mobile but they also didn't work. I found a useful answer from @andrew-woodhead666: https://answers.launchpad.net/ubuntu/+question/665374 - it seems this bug is still not fixed for the upgraded dists in the main release and affects a few dozens of ubuntu users. I got a lot of answers with different approaches. Would be good to know which one is the right + it seems this bug is still not fixed for the upgraded dists in the main release and affects a few dozens of ubuntu users. https://askubuntu.com/questions/1021884/no-internet-after-upgrade-from-16-04-to-18-04 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1816530 Title: DNS servers are not being set in the system correctly when you upgrade from 16.04 to 18.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1816530/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs