TCP Optimizer is a free, user-friendly Windows application designed to enhance and optimize your Internet connection. Whether you're a beginner or an expert, TCP Optimizer offers valuable tools to fine-tune your system according to your specific Internet setup. This versatile program is particularly beneficial for improving VoIP call quality by allowing easy adjustments of crucial TCP/IP parameters, including MTU, RWIN, and advanced settings like QoS and ToS/Diffserv prioritization. With TCP Optimizer, achieving a faster and more reliable Internet connection has never been easier.





I’ve seen some speed increase using SG TCP Optimizer, especially for streaming. But I’m not completely sold yet; sometimes it feels inconsistent.