During February 2026, Ziyu Chen focused on enhancing network reliability in the SagerNet/quic-go repository by addressing a nuanced compatibility issue between UDP Generic Segmentation Offload (GSO) and PPPoE drivers. Leveraging expertise in Go and network programming, Ziyu implemented conditional logic to ensure UDP GSO was only requested for segmented payloads, thereby preventing unnecessary offloads for single-segment transmissions. This targeted fix reduced transmission failures and retries for QUIC over PPPoE, resulting in more stable deployments across diverse environments. The work demonstrated a deep understanding of low-level networking and offload mechanisms, contributing to improved performance reliability in real-world scenarios.