Network controller has stopped working

Symptom

The network controller stopped working.

Action
  1. To see if any statuses indicate the source of the issue, check the network controller LEDs.

    For LED information, see the network controller documentation or compute module documentation.

  2. Be sure that the correct network driver is installed for the controller and that the driver file is not corrupt.

    Reinstall the driver.

  3. Be sure that no loose connections exist.
  4. Be sure that the network cable is working by replacing it with a known functional cable.
  5. Be sure that the network controller is not damaged.