Hi, I can't find anything wrong in your configuration. And that makes me wonder if you have another YAML with the same wg0 interface in it. We recently fixed a bug in Network Manager that was leading to duplication in the configuration. You might have been affected by this bug when you upgraded to Mantic.
If you grep /etc/netplan by the interface name, do you see more than one file? Something like this "sudo grep wg0 /etc/netplan/*". If you find the same interface in more than one file, try to remove them and create the connection again using the GUI. The problem might be that you have multiple YAMLs with the same interface. Netplan will merge them in a single configuration and the result might be a broken config. Let me know if it helps. Thanks! -- 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/2044014 Title: networkmanager crashes on configuring wireguard connection via nm- connection-editor Status in network-manager package in Ubuntu: Triaged Bug description: when configuring a new wireguard connection both via nm-connection-editor and the settings app, NetworkManager crashes and restarts, with the error message "Message recipient disconnected from message bus without replying". Currently, I'm unable to add wireguard connections at all. Also, I have netplan.io/now 0.107-5ubuntu1~ppa3 installed to outrule https://bugs.launchpad.net/ubuntu/+source/netplan.io/+bug/2039821 Ubuntu 23.10 network-manager/mantic-updates,now 1.44.2-1ubuntu1.2 amd64 netplan.io/now 0.107-5ubuntu1~ppa3 ProblemType: Bug DistroRelease: Ubuntu 23.10 Package: network-manager 1.44.2-1ubuntu1.2 ProcVersionSignature: Ubuntu 6.5.0-10.10-generic 6.5.3 Uname: Linux 6.5.0-10-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.27.0-0ubuntu5 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Mon Nov 20 20:10:40 2023 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2018-05-15 (2015 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) IpRoute: default via <retracted> dev enp0s31f6 proto dhcp src <retracted> metric 100 <retracted>/24 dev enp0s31f6 proto kernel scope link src <retracted> metric 100 169.254.0.0/16 dev enp0s31f6 scope link metric 1000 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=false WWANEnabled=false ProcEnviron: LANG=de_DE.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color SourcePackage: network-manager UpgradeStatus: Upgraded to mantic on 2023-11-05 (15 days ago) http_proxy: http://<retracted>:3128 nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.44.2 connected started full enabled enabled disabled missing disabled no_proxy: 127.0.0.1,172.16.0.0/12,10.0.0.0/8,192.168.0.0/16,<retracted> To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/2044014/+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
