I was able to pinpoint which more recent upstream kernel fixes the breakage:
last bad kernel: v4.11-rc5 (a71c9a1c779f2499fb2afc0553e543f18aff6edf) first good kernel: v4.11-rc6 (39da7c509acff13fc8cb12ec1bb20337c988ed36) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1686636 Title: outgoing tcp connections sometimes fail to be established To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686636/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
