Cannot connect to nerves.local

Hello, new here and learning. I have a RPI0. I was able to build the blinky example and load it into the target via the USB connection. At that time I was able to ping nerves.local and ssh to the target as well. I left it connected to the USB for a couple of hours and when I returned nerves.local is not longer available. A ping results in “cannot resolve nerves.local: Unknown host”. I’ve tried to disconnect (the USB), what a while, and reconnect. I see the blinky app running (blinking) but still cannot ping, ssh, or upload the firmware. Any recommendations would be amazing!