Network controller or FlexibleLOM is installed but not working

Symptom

The network controller or the FlexibleLOM is not working.

Action
  1. Check the network controller or FlexibleLOM LEDs to see if any statuses indicate the source of the issue. For LED information, see the network controller documentation or server documentation.
  2. Review the IML for error messages that could indicate the issue.
  3. Be sure no loose connections exist.
  4. Be sure the correct cable type is used for the network speed or that the correct SFP or DAC cable is used. For dual-port 10 GB networking devices, both SFP ports should have the same media (for example, DAC cable or equivalent SFP+ module). Mixing different types of SFP (SR/LR) on a single device is not supported.
  5. Be sure the network cable is working by replacing it with a known functional cable.
  6. Be sure a software issue has not caused the failure. For more information, see the operating system documentation.
  7. Be sure the server and operating system support the controller. For more information, see the operating system documentation or server documentation.
  8. Be sure the controller is enabled in the UEFI System Utilities.
  9. Be sure the server ROM is up to date.
  10. Be sure the controller drivers are up to date.
  11. Be sure a valid IP address is assigned to the controller and that the configuration settings are correct.