TCP Optimizer 4.1.1 freeware

The interface of the application may look crowded for beginners as there is no lack of drop-down menus for the impressive number of customizable settings. TCP Optimizer retains that professional touch though by granting advanced users the chance to get under the hood and tinker its most hidden aspects. The Connection Speed slider at the top of the main interface window allows you to set the maximum available bandwidth for your connection. ...

Author Speed Guide, Inc.
Released 2021-01-10
Filesize 686 kB
Downloads 1524
OS Windows XP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64
Installation Instal And Uninstall
Keywords connection boost, connection optimizer, internet speed, TCP, connection, optimizer
Users' rating
(14 rating)
TCP Optimizer - network testing software Freeware Download Notice

TCP Optimizer Free Download - we do not host any TCP Optimizer torrent files or links of TCP Optimizer on,, etc. All TCP Optimizer download links are direct TCP Optimizer download from publisher site or their selected mirrors.

TCP Optimizer freeware - The Latest User Reviews
TCP Optimizer freeware - The Latest Versions History
4.1.1 Jan 10, 2021 New Release Changed the recommended "optimal" congestion control algorithm from CTCP to CUBIC for newer Windows 10 and Server 2019 builds. CUBIC works slightly better for pure throughput, CTCP may work slightly better for VoIP and gaming in combination with ECN and lossy connections.
4.1.0 Feb 22, 2019 New Release
4.0.6 Sep 27, 2016 New Release Changed recommended optimal TCP Auto Tuning level from "experimental" to "normal" for fast connections over 100 Mbps to avoid some LAN shares issues
Updated recommended optimal TCP Auto Tuning level from "restricted" to "disabled" for connection speeds under 512 Kbps.

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