Got the same issue after the upgrade. In my case: moshe@moshe-desktop:~/New$ grep . /run/resolvconf/interface/* nameserver 127.0.0.53
moshe@moshe-desktop:~/New$ cat /etc/resolv.conf # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN # 127.0.0.53 is the systemd-resolved stub resolver. # run "systemd-resolve --status" to see details about the actual nameservers. nameserver 127.0.0.53 The difference from Zoltn's issue is that I don't have the lines: options edns0 search home During the upgrade which was done using Wi-Fi, the connection went down but it was after the download completed so the upgrade ended. -- 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
