The networkd-dispatcher errors are not causing your connection issues - networkd dispatcher just starts scripts after network changes. I wonder if the connection issues are causing the networkd-dispatcher issues.
There needs to be some more information. Could you (1) add -vv to networkd_dispatcher_args= in /etc/default/networkd-dispatcher and restart it? (2) include the output of networkctl list Thanks! ** Changed in: networkd-dispatcher (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1775131 Title: Ubuntu 18.04 networking issue (connection drops after approx. 15 minutes) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/networkd-dispatcher/+bug/1775131/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs