What are the permissions of the directory /run/systemd/network and the files inside of it?
Can you paste the output of "ls -la /run/systemd/network" here please? Do you see any "permission denied" kind of errors in the systemd- networkd journal related to files from /run/systemd/network? (journalctl -u systemd-networkd) Also, do you have a custom umask in this system? As part of the security fixes, we had to make these permissions more restrictive. I wonder if it's causing the issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2074266 Title: 24.04: latest netplan updates fail to apply already working config To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/netplan.io/+bug/2074266/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs