https://wccftech.com/intel-foxville-i225-v-2-5gbe-networking-issues-persist-z490-motherboards-affected/

Last month, we reported about a major flaw within the Intel I225-V 'Foxville' networking chip which Intel claimed to have been fixed with a newer revision which was shipping in Z490 motherboards that are now available on retail shelves, however, test results from our sources show that the issue still persists and several Z490 motherboards featuring the Foxville controller could remain affected and unable to deliver the advertised networking speeds that a 2.5GbE networking controller should deliver.

Intel's I225-V network controller which is codenamed Foxville aims to deliver 2.5GbE networking speeds. It is part of the new 400-series chipset based motherboards and one of the highlighted features of the platform. The I225-V 'Foxville' is a 2.5Gbe network controller which is designed to standardize 2.5Gbe LAN across the mainstream platform. Intel's network controllers are used on both Intel's own chipset based motherboards and also those that feature AMD's chipsets.