Worked on the mozilla/neqo repository to enhance WebTransport stream reliability by implementing a keep-alive mechanism using periodic PING frames. This feature proactively maintains idle connections by updating the connection logic to invoke stream_keep_alive whenever a new stream is established, addressing issues with premature stream closures during periods of low activity. Developed and integrated a dedicated test case to validate the effectiveness of the keep-alive behavior, ensuring that WebTransport streams remain active as intended. The work involved protocol implementation and networking concepts, leveraging Rust to deliver robust stream management and improve user experience in scenarios with intermittent or minimal data transfer.