Go back to USB on a Windows pc. See if you can get it to recognize it as a USB device and get an ip address of 172.22.11.2. Make sure the 2016 FRC update suite is installed. (uninstall any old versions first). Try at least 2 computers and 2 different USB cables. If successful, see if you can ping it and then if you can log into its web interface. If you can log in, verify the team number and firmware.
See this page for networking tips:
https://wpilib.screenstepslive.com/s...roubleshooting
If all else fails, it may have to be recovered using safe mode.
There is always the possibility that it could be bad. You could contact NI to go down that route.