I found what was causing my problem. /var/lib/NetworkManager/NetworkManager.state had NetworkingEnabled=false and WirelessEnabled=false. I don't know what caused this.
I deleted the file, rebooted, and now I can connect to my network again -- at least the wired network which I use at the office. I'll connecting to a wireless network when I get home. -- Networking is disabled on boot https://bugs.launchpad.net/bugs/524454 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs