Intel® Ethernet Adapters and Devices User Guide
Firmware Rollback Mode
When a port is in firmware rollback mode, it may have reduced functionality.
Usually a device enters firmware rollback mode when a firmware update does not complete correctly. Rebooting or power cycling the system may allow the port to use the previous firmware.
You may need to reapply the firmware update to regain full functionality on the device. Use the appropriate NVM Update Package to update the device’s firmware. Download the latest NVM Update Package from your vendor’s support website and follow the instructions in it.
After restoring the NVM image, you may need to perform an A/C power cycle of the system.