Not sure if this will overlap with anyone else, but my experience was a combination of 2 things:
1. Reboots were happening, caused by unattended-upgrade 2. The device causing trouble was a renamed device. Turns out it was trying to get renamed twice: Once very early in boot from eth1 to eno2, then again based on my neplan from eno2 to the name I wanted. This was failing, and leaving the device down. See my comment #117 on this issue for more details: https://bugs.launchpad.net/netplan/+bug/1770082 -- 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/linux/+bug/1775131/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
