Intel® Ethernet 700/800 Series
Windows Performance Tuning Guide
Ensure DDP Package is Loading Properly
Ensure that the driver reports the presence, and successful load, of the Dynamic Device Personalization (DDP) package file in Event Viewer by displaying this message:
In the event of a DDP package load error, the device defaults to safe mode, and many performance features are unavailable. If there are errors related to loading the DDP package, this can affect performance.
As a workaround to resolve DDP load issues, try to unload and reload the driver (i40ea/i40eb/icea).
For further troubleshooting steps, refer to the DDP Technology Guides: