TCP/IP Archives

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Windows Server

2026-01-21

Tune Windows Server TCP/IP and IIS

In this small post I’ll guide you through the various Windows Server and IIS configuration settings, for an optimized network performance, high performance websites and high volume of web requests.

Explicit Congestion Notification (ECN) slows down outbound connections

ECN is an optional feature that may be used between two ECN-enabled endpoints when the underlying network infrastructure also supports it. Unfortunately, having one ECN Capability enabled endpoint may slow down outbound network connections to outdated network equipment.