After some days of working under the old core and installing updates that followed thereon everything's returned to normal work.
But I still do not know what it was! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1679968 Title: Neither wireless nor wired connections after updating core from 4.4.0-71 to 4.4.0-72 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1679968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs