Public bug reported: After having updated my laptop from Ubuntu 17.04 to 17.10, the DNS lookup on my wireless network connection did not work any more.
As it seems, the file /etc/resolv.conf was static and contained wrong data assigned by the NetworkManager. When I changed the file content manually to nameserver 127.0.0.53 DNS lookup worked fine. After reboot, however, I had to repeat this operation since NetworkManager seems to have replaced the file content. Finally, I found a solution. Running sudo dpkg-reconfigure resolvconf the file /etc/resolv.conf was replaced by the link /etc/resolv.conf -> ../run/resolvconf/resolv.conf Now, the wireless network seems to work properly. Hence, there must be some kind of bug during the update process from Ubuntu 17.04 to 17.10 that impedes resolvconf to be configured properly. Best regards, Artur ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: resolvconf 1.79ubuntu8 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sat Oct 21 23:17:38 2017 InstallationDate: Installed on 2013-10-18 (1463 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) PackageArchitecture: all SourcePackage: resolvconf UpgradeStatus: Upgraded to artful on 2017-10-19 (1 days ago) ** Affects: resolvconf (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug artful wayland-session -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1725840 Title: resolvconf not correctly configured after update from 17.04 to 17.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1725840/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs