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.
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.
Be sure the network controller or FlexibleLOM is not damaged.
More information
Resolving loose connections on page 20
Server documentation on page 167
Network controller or FlexibleLOM stopped working when an expansion board was
added
Symptom
The network controller or FlexibleLOM stopped working when an expansion board was added to the
server.
Cause
• The network controller or FlexibleLOM is not seated or connected properly.
• The network controller or FlexibleLOM is not supported by the OS or the server.
• Installation of the network controller or FlexibleLOM changes the server configuration.
• The network controller or FlexibleLOM drivers are out of date.
• The driver parameters do not match the configuration of the network controller.
Action
1.
Be sure no loose connections exist.
2.
Be sure the server and operating system support the controller. For more information, see the
operating system documentation or server documentation.
3.
Be sure the new expansion board has not changed the server configuration, requiring reinstallation of
the network driver:
a.
Uninstall the network controller driver for the malfunctioning controller in the operating system.
b.
Restart the server and run the appropriate option in the UEFI System Utilities. Be sure the server
recognizes the controller and that resources are available for the controller.
c.
Restart the server, and then reinstall the network driver.
124
Network controller or FlexibleLOM stopped working when an expansion
board was added
