This could have the same reason as the bug filed by me: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1882797
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1845793 Title: Since upgrade to ubuntu 19.10, dhclient doesn't respect the "supersede domain-name-servers" in dhclient.conf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1845793/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs