> During the upgrade which was done using Wi-Fi, the connection went down but it was after the download completed so the upgrade ended.
sorry, it's not clear to me, are you saying the upgrade completed successfully? And do you mean that currently, your dns does not work? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to resolvconf in 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 Status in resolvconf package in Ubuntu: Invalid Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1816530/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp