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Based on the provided information, you may want to try out
the updated driver - ixgbe 4.4 and ixgbevf 3.2.2 for your HP 560FLB to check if it help in your issue.
Please refer to the HP website link for the drivers. Kindly take note Intel doesn't guarantee
the content of the site below.
I'd also suggest contacting HP support for further assistance since our 82599 and X540 were integrated to their adapter, there might have customization to better fit into their product.