I think it's not that hard to add similar support for Killer E2500v1. This driver adds support for RSC (Receive Segment Coalescing) and NetAdapterCx (Network Adapter WDF Class Extension). Intel recently updated the driver for Killer E2500v2 to version 1168.002.0909.2021 in Killer Performance Suite 3.1121.1048. Then Intel bought Rivet Networks and brazenly closed driver support for the E2500 v1. The latest driver was released by Rivet Networks in yanuary 2020 (v 9.0.0.50 ). When will Intel release a new driver for Killer E2500 v1 with full Windows 11 support?