I have some extra information that might lead you into the right direction.
I used the following extra line in my openvpn connection config file (/etc/NetworkManager/system-connections/vpn_connection_name): [ipv4] dns-priority=-1 After the update DNS received from OpenVPN connection was not respected anymore. Today I replaced that line with the following: [ipv4] dns-search=~ with following versions: network-manager: 1.10.14-0ubuntu2 systemd: 237-3ubuntu10.22 Now my DNS is correctly updated after connecting to OpenVPN. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1829566 Title: network-manager 1.10.14-0ubuntu2 ignores systemd-resolved configured dns Status in network-manager package in Ubuntu: Triaged Status in network-manager source package in Bionic: Triaged Bug description: On 18.04.2 the `upgrade network-manager:amd64 1.10.6-2ubuntu1.1 1.10.14-0ubuntu2` lead to scoped DNS servers defined in `/etc/systemd/resolved.conf.d/*.conf` being ignored. Downgrading with `sudo apt-get install network- manager=1.10.6-2ubuntu1.1` has resolved the issue for now. Example systemd-resolved conf: [Resolve] Cache=no DNS=127.0.0.54 Domains=~.local.org.com Where 127.0.0.54:53 is bound to a dnsmasq server capable of resolving queries in that subdomain. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1829566/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp