Turns out what I said before isn't true. The issue still exists. So, why was I getting a good network connection on the physical machine I tried 16.04.1 on? Because I was connecting to WiFi via an Access Point created on a 14.04 installation. The minute I connected directly to the router, it started showing the network connection issues all over again.
Similarly, it seems that the network works fine in VirtualBox (14.04 host) if using a NAT network adapter. If I switch it a bridged adapter I get the network stops working after a while, just like a physical machine running 16.04 before. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1434986 Title: Not working network connection after boot To manage notifications about this bug go to: https://bugs.launchpad.net/network-manager/+bug/1434986/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs