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Network controller has stopped working


  1. Check the network controller LEDs to see if any statuses indicate the source of the problem. For LED information, refer to the network controller documentation.
  2. Be sure the correct network driver is installed for the controller and that the driver file is not corrupted. Reinstall the driver.
  3. Be sure no loose connections exist.
  4. Be sure the network cable is working by replacing it with a known functional cable.
  5. Check the PCI Hot Plug power LED to be sure the PCI slot is receiving power, if applicable.
  6. Be sure the network controller is not damaged.
  7. Run Insight Diagnostics and replace failed components as indicated.