Generally MTU should be set at 1500, with the exception of PPPoE connections, and some DSL modems/ISPs. This section allows you to set a custom MTU value. You can also choose to modify all network adapters at the same time, or none of their individual setting. If a specific network adapter is selected using the pull-down menu, its IP address will be displayed in the lower-right portion of this section. Reportedly it may cause issues with Outlook connecting to mail servers, accessing local network shares, and Crashplan backups in some Windows versions.Ī list of all present/active network interfaces recognized by the system. Note that the "experimental" TCP Window auto-tuning setting should be used with caution, as it may cause some stability issues. Under newer Windows OSes, it may change the auto-tuning algorithm (restricted for speeds under 1Mbps, normal for most broadband connections, experimental for speeds over 1 Gbps, to be used with caution currently). Under older Windows variants, it directly calculates the RWIN value optimal for the connection speed. Note that speed is expressed in Mbps, denoting Mega bits per second (not to be confused with Megabytes).Ĭhanging the value in the connection speed slider will have some effect on the optimal TCP Window value. You should not use your current speed, or any speed test results here, rather what the maximum theoretical speed of your connection is. This slider is intended for choosing your maximum possible internet connection speed, as advertised by your Internet Service Provider ( ISP). Note: You should be logged in with your main account (some settings are account-specific), and run the program with administrative privileges so that it has sufficient permissions to make all the necessary changes.īelow is a short description of all the settings in the "General Settings" tab of the TCP Optimizer under current Windows versions. Please read the following chapters for information on all the specific parameters in the program. To do so, you may have to read the rest of the documentation and our tweaking articles to understand what the different settings mean, and what their exact effect is. The program can be used to easily apply custom values, and test with different settings, if you'd prefer. A preview of all relevant changes is available before they are actually applied. The TCP Optimizer can do all the rest of the work for you and optimize your internet connection.
Pick "Optimal settings" from the radio-buttons near the bottom of the programĬlick on the "Apply changes" button, choose to create backup and log, and reboot when prompted Start the program with administrative permissions: right-click on the program, choose "Properties" -> Compatibility tab -> tick "Run this program as an administrator" -> OKĬhoose your maximum connection speed (as advertised from your ISP) in the slider bar.Ĭhoose your Network Adapter that connects you to the Internet (or tick "Modify all network adapters") If you do not feel like reading the entire documentation below, or you simply need the tweaks NOW, just follow these short instructions:
Some of the settings may only be available under Windows 8 and newer operating systems. verifies all relevant Registry locations for the same TCP/IP parameters, uses PowerShell cmdlets with newer Windows versions, implements all tweaks listed in our speed tweak articles, and, in general makes the whole "tweaking for speed" experience a breeze.īelow, we will cover all the settings available in the TCP Optimizer. The TCP Optimizer takes into account all related RFCs, the Microsoft TCP/IP implementation oddities. Some of the settings under all those Operating Systems are quite different, and the program will show only supported options for the detected Operating System it is running on.
Version 4 of the TCP Optimizer supports all Windows variants from XP/NT/2000/2003 through Windows Vista/7/2008 Server, to the newer WindServer, as well as Windows 10. The TCP Optimizer is a program designed to provide an easy, intuitive interface for tuning broadband-related TCP and IP related parameters under all current (and some past) Windows versions. The TCP Optimizer documentation for Windows XP/2000/2003/NT (and TCP Optimizer 2.x) is available -here-.Ĥ.4 Retransmit Timeout (RTO) - Windows 8 and newerĤ.7 Gaming Tweak - Network Throttling IndexĤ.8 Gaming Tweak - Disable Nagle's algorithm Please also see the TCP Optimizer FAQ for answers to frequently asked questions. Some of the settings may be specific to newer revisions of Windows, and not present in earlier versions.
The software supports Windows 7, 8, 8.1, 10 (including newer revisions), 2012 Server (including R2), 2019 Server. This documentation is for version 4 of the SG TCP Optimizer.