I have the same error: When using forticlient:
Dec 12 13:57:04 XXXXXXXXXXXXXX NetworkManager[39408]: nm:ERROR:src/core/settings/nm-settings-utils.c:103:<unknown-fcn>: assertion failed: (<dropped>) Dec 12 13:57:04 XXXXXXXXXXXXXX NetworkManager[39408]: Bail out! nm:ERROR:src/core/settings/nm-settings-utils.c:103:<unknown-fcn>: assertion failed: (<dropped>) Dec 12 13:57:05 XXXXXXXXXXXXXX systemd[1]: NetworkManager.service: Main process exited, code=dumped, status=6/ABRT Dec 12 13:57:05 XXXXXXXXXXXXXX systemd[1]: NetworkManager.service: Failed with result 'core-dump'. Dec 12 13:57:05 XXXXXXXXXXXXXX systemd[1]: NetworkManager.service: Consumed 2.352s CPU time, 23.0M memory peak, 0B memory swap peak. Dec 12 13:57:05 XXXXXXXXXXXXXX systemd[1]: NetworkManager.service: Scheduled restart job, restart counter is at 1. Dec 12 13:57:05 XXXXXXXXXXXXXX systemd[1]: Starting NetworkManager.service - Network Manager... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2089930 Title: NetworManager crashes when modifing connection (ipv4.ignore-auto- routes yes) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/2089930/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs