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SG TCP Optimizer
Details: The TCP Optimizer is a free, easy Windows program that provides an intuitive interface for tuning and optimizing your Internet connection. There is no installation required, just download and run as administrator.
The program can aid both the novice and the advanced user in tweaking related TCP/IP parameters in Windows, making it easy to tune your system to the type of Internet connection used. The tool uses advanced algorithms, and the bandwidth*delay product to find the best TCP Window for your specific connection speed. It provides for easy tuning of all related TCP/IP parameters, such as MTU, RWIN, and even advanced ones like QoS and ToS/Diffserv prioritization. The program works with all current versions of Windows, and includes additional tools, such as testing average latency over multiple hosts, and finding the largest possible packet size (MTU).
The TCP Optimizer is targeted towards broadband internet connections, however it can be helpful with tuning any internet connection type, from dialup to Gigabit+ :) It is completely free, works with most Windows versions from XP to Windows 11, requires no installation, and has been downloaded over 10 Million times over the years.
If you need help with the program, check the TCP Optimizer documentation, read our broadband tweaking articles, the Optimizer FAQ, and/or visit our Forums. The program can be freely (re)distributed, as long asyou give us proper credit as the author, and it is not sold for profit.
TCP Optimizer Download:
TCP Optimizer 4 (latest stable official SG release, works with all current Windows versions)
TCP Optimizer Download Mirrors:
SpeedGuide.net (latest version, recommended)
MajorGeeks.com
Download.com
Softpedia.com
CHIP Online (German) version 4,
GIGA Software (German)
OS: 
Windows 9x/ME/2K/XP/2000/Vista/7/2008/8/10/22/2012 Server/2019 Serverversion: 4.1.1date: 2021-01-08file size: 668 KB
Legacy Versions:
TCP Optimizer v. 3.08 (deprecated, supports versions up to Windows 7/2008 Server, does not support Windows 8/10/2012)
TCP Optimizer v. 2.03 (deprecated, unsupported, released 01/06/2006, supports versions up to Windows XP)
TCP Optimizer v. 1.00 (deprecated, unsupported)
Donations:
The TCP Optimizer software is completely free to use and distribute. We do not actively seek donations, however, we can accept and appreciate them. All donations will be used towards software/site development and server/colocation costs. You can donate via Paypal at , or Bitcoin at 15m4hb1fqqRh7js92qaYDQJP2YHF6jpQFS
SG Windows 7 / Vista / 2008 Misc Downloads
SG Vista TCP/IP Patch - NOT required if using the TCP Optimizer
Description: The SG Vista TCP/IP patch us a quick way to optimize Vista TCP/IP settings for broadband internet connections. It sets both netsh auto tunning levelsand modifies the Windows Registry as recommended by our Vista Tweaks article. It is recommended to run the patch when logged in withadministrative priviledges. The patch allows for reverting all settings to their respective Windows default values as well. Note you may have to right-click the link above and choose "Save Target As..." to save to your computer. To apply, save to your desktop and run as administrator (right-click -> run as administrator). Type Y when prompted to optimize parameters.
OS: Windows Vista 32/64, Server 2008| version: 1.5| date: 01/24/2010| filesize: 4.86KB
ReadyDriver Plus v 1.2
Description: The ReadyDriver Plus software allows for using unsigned drivers with Vista x64. This version works on both Vista x86 and x64 platforms. The developer, Uhlik, and SpeedGuide.netare not responsible in whole or in part for any problems that may incur from using ReadyDriver Plus. This software is also available for download directly from Uhlik, as well as Citadel Industries.
OS: Windows Vista 32/64| version: 1.2| date: 12/01/2009| filesize: 518KB
sg_vista_tcpip_limit_patch.zip
Description: This registry patch changes the limit of half-open TCP connections to 500 (from the default 2-25). Note that this should only be needed pre-Service Pack 2, and a patched tcpip.sys versionis necessary to utilize this tweak, as outlined in our Vista tcpip.sys connection limit article.
OS: Windows Vista 32-bit/64-bit| version: 1.0| date: 07/08/2008| filesize: 1KB
Older Windows 9x Registry Patches
We've added the optimal Registry settings for Cable Modems, DSL or any similar broadband Internet connection to the Registry patches below. Note that if you're using the TCP Optimizer program, there is no need to apply any of those registry patches, as they modify the same parameters. You should really experiment with different settings and add them manually or using our TCP Optimizer program above rather than applying generic patches, however we've added them for simplicity, ease of installation and the many requests. Please make sure you download the patch for your version of Windows, they are slightly different. If you'd rather try editing the Registry yourself, check the Registry Tweaks section of the site, or use our TCP Optimizer program.
Note: All patches are compressed and downloadable in "zip" format. You might need an utility, such as WinZip or WinRAR to uncompress the downloaded files before installation.
sguide_tweak_9x.zip
Description: Generic Registry patch for Windows 95/98/98SE/ME (includes a fix for 98SE ICS, as well ascorrected SackOpts location). This is an updated version of our original regstry patch, it's an .inf file thattweaks the Registry and adds all the optimum settings for Cable modem, DSL, or any similar broadband connection.To install, extract the file first, then just right-click (on the .inf filename) and choose "Install" from thePull-down menu. You need to reboot for changes to take effect.
OS: Windows 9x/ME| version: 1.0| date: 11/23/00| filesize: 1KB
sguide_tweak_9x_pppoe.zip
Description: Generic Registry patch for Windows 95/98/98SE/ME and DSL connection using PPPoE. (includes a fix for 98SE ICS, as well as smaller MaxMTU, corrected for PPPoE)This is an updated version of our original regstry patch, it's an .inf file that tweaks the Registry and adds allthe optimum settings for Internet connecions using PPPoE. To install, extract the file first, then just right-click (on the .inf filename) and choose "Install" from thePull-down menu. You need to reboot for changes to take effect. The PPPoE patch generally applies only to some xDSL connecions, it is not for use with Cable modems. For additional info on PPPoE check out our Terms & Definitions page.
OS: Windows 9x/ME| version: 1.0| date: 11/23/00| filesize: 1 KB
sguide_default_9x.zip
Description: A patch that returns all TCP/IP related Registry entries to the Windows default state. You can use it with Windows 9x/ME.To install, extract the file first, then right-click (on the .inf filename) and choose "Install" from the Pull-down menu. You need to reboot for changes to take effect. If you don't like the changes all the other patches make, or in case they have negative effect on your throughput, either restore the Windows registry to it's previous state, or use this patch to return to the default Windows TCP/IP entries.
OS: Windows 9x/ME| version: 1.0| date: 11/23/00| filesize: 1 KB
sguide_tweak_2k.zip
Description: Generic patch for Windows XP and Windows 2000 (all versions). This patch will optimizeyour TCP/IP Registry settings for high speed Internet connections. To install, extractthe .inf file first, then double-click (or right-click on filename and choose install fromthe pull-down menu) and reboot for changes to take effect.
OS: Windows 2K/XP/2k3| version: 1.0| date: 12/18/01| filesize: 1 KB
sguide_tweak_2k_pppoe.zip
Description: Generic patch for Windows XP/2000 and DSL connections using PPPoE. This patch will optimize your TCP/IP Registry settings for high speed Internet connections. It is specifically designed for PPPoE DSL connections. To install, extract the .inf file first, then double-click (or right-click on filename and choose install from the pull-down menu) and reboot for changes to take effect.
OS: Windows 2K/XP/2k3| version: 1.0| date: 12/18/01| filesize: 1 KB
sguide_default_2k.zip
Description: Patch that reverts the Windows XP / 2000 Registry to its default state regarding TCP/IP, deleting all tweaks.To install, extract the .inf file first, then double-click (or right-click on filename and choose install from the pull-down menu) and reboot for changes to take effect.
OS: Windows 2K/XP/2k3| version: 1.0| date: 12/18/01| filesize: 1 KB
winxp_dnscache.zip
Description: Patch Windows 2k/XP not to cache failed DNS entries. By default, when a DNS lookup fails (due to temporary DNS problems), Windows still caches the unsuccessful DNS query,and in turn fails to connect to a host regardless of the fact that the DNS server might be able to handleyour lookup seconds later. This patch fixes the problem by configuring the DNS client to continue sending queries to an unresponsive network.To install, save to your HD, unzip the .reg file, then double-click the filename.
OS: Windows 2K/XP/2k3| version: 1.0| date: 05/14/01| filesize: 0.5 KB
winxp_dnscache_undo.zip
Description: Patch to reverse all changes made by winxp_dnscache.reg. To install, save to your HD, unzip the .inf file, then right-click on the filename and choose "install" from the pull-down menu. Note: don't open the file, just right-click on the .inf filename and choose "install".
OS: Windows 2K/XP/2k3| version: 1.0| date: 05/14/01| filesize: 2 KB
Web Patches - faster loading of Web Pages
The following patch increases Web page loading speed, by doubling the number of possible concurrent open connections. For example, imagine a web page has 20 images and some text - in order for your browser to get all these files, it opens 2 or 4 concurrent connections, depending on the Web server. Increasing the number of open connections allows for faster retrieving of the data. Please note that the patch sets some values outside of the HTML specs. If you decide to install it, backup your Registry first. Changes will take effect after you reboot. Download the patch appropriate for your OS:
sg_webtweak_9x.zip
Description: SpeedGuide Web Patch for Windows 95/98/98SE/ME
OS: Windows 9x/ME| version: 1.0| date: 12/18/01| filesize: 1 KB
sg_webtweak_2k.zip
Description: SpeedGuide Web Patch for Windows 2000/XP
OS: Windows 2K/XP/2k3| version: 1.0| date: 12/18/01| filesize: 1.5 KB
FAQs
Does TCP Optimizer really works? ›
Yes, the Optimizer does work and very well in 99% of all systems (which might be a better average than MS Windows itself ;) ). It optimizes some networking related buffers for Internet connectivity, and allows for some educated custom tweaking of your Internet connection.
How can I improve my ping with TCP Optimizer? ›To tune your network for gaming and latency you need to follow a couple of quick steps while using the TCP Optimizer. Set your Connection Speed slider value and apply Optimal settings. Restart and open TCP Optimizer again. Apply changes and reboot the machine again.
Is TCP Optimizer good for gaming? ›While the SG TCP Optimizer is designed to give you the best possible throughput online, it can also help improve your gaming experience. There are, however a few subtle differences when optimizing for throughput/file transfer vs. gaming/reduced latency.
How do I speed up my Internet connection? ›- Restart your computer. ...
- Close unnecessary apps and programs. ...
- Disconnect other devices. ...
- Download one file at a time. ...
- Scan for viruses. ...
- Update drivers and firmware. ...
- Clear cookies.
- Increase TCP initial congestion window to 10 (IW10). ...
- Reduce the initial timeout from 3 seconds to 1 second. ...
- Use TCP Fast Open (TFO). ...
- Use Proportional Rate Reduction for TCP (PRR).
You can optimize TCP/IP settings in Windows 10 either manually or using a third-party app. Optimizing it can potentially improve your internet connection speed.
How do I optimize my Internet for gaming? ›- Restart Your Modem to Speed Up Your Internet and Eliminate Gaming Lag. ...
- Relocate Your Router to Reduce Lag When Gaming. ...
- Using A Wired Set-Up Will Reduce Gaming Lag. ...
- Optimize Internet By Changing Your Wi-Fi to Get Rid of Lag in Gaming.
How to Optimise Ethernet for Gaming - Lower Your Ping & Increase ...
How do I get better ping with Ethernet? ›- Close background programs and applications. ...
- Temporarily disable updates. ...
- Use an ethernet cord. ...
- Remove other devices from your network. ...
- Check the game server's ping. ...
- Select a gamer server closest to you. ...
- Adjust your frame rate. ...
- Upgrade your router.
Yes. The TCP Optimizer is as safe as a program could be, however there is a very slim chance that someting might not work, or have a negative effect to your Internet connectivity.
How do I lower my ping on Windows? ›
- Use a stable VPN solution. ...
- Change how Windows 10 delivers updates. ...
- Check the apps in Task Manager. ...
- Change your wireless network adapter settings. ...
- Disable the location tracking feature. ...
- Disable third-party antivirus/firewall tools. ...
- Check your wireless signal.
CUBIC is the recommended, and currently most popular congestion control/avoidance algorithm, it is the default in Linux since kernel 2.6.
Can I boost my internet speed? ›Turn off or disconnect devices you're not using. Move Wi-Fi devices closer to your gateway. Add a Wi-Fi extender to strengthen and expand your coverage. Try using wired connections when you stream, game, and video conference.
What device increases internet speed? ›Internet booster is a device that improves the internet connection speed by increasing the strength of wireless router signal. These devices can be used to boost the signal strength of home internet connections, or in offices and public places like cafes, hotels, and airports.
How do I optimize my router settings? ›- Change the default password. ...
- Change the default IP address. ...
- Set the DHCP server mode to disable. ...
- Set up the wireless network. ...
- Set the wireless channel. ...
- Disable the Wireless SSID broadcast. ...
- Enable the WPS or SES mode. ...
- Set up the wireless security.
The magnitude of these TCP network delays depends on hardware speed, the load of the network and server, the size of the request and response messages, and the distance between client and server. The delays also are significantly affected by technical intricacies of the TCP protocol.
What affects TCP speed? ›TCP is Impacted by Retransmission and Packet Loss
Packet loss will have two effects on the speed of transmission of data: Packets will need to be retransmitted (even if only the acknowledgment packet got lost and the packets got delivered) The TCP congestion window size will not permit an optimal throughput.
HTTP typically uses port 80 – this is the port that the server “listens to” or expects to receive from a Web client. TCP doesn't require a port to do its job. HTTP is faster in comparison to TCP as it operates at a higher speed and performs the process immediately. TCP is relatively slower.
How do I optimize TCP IP settings in Windows 10? ›- Select Start, then type settings. Select Settings > Network & internet.
- Do one of the following: ...
- Next to IP assignment, select Edit.
- Under Edit network IP settings or Edit IP settings, select Automatic (DHCP) or Manual. ...
- When you're done, select Save.
- Play on a local server. ...
- Quit apps in the background. ...
- Ditch Wi-Fi and use Ethernet. ...
- Disconnect devices from your network. ...
- Tweak your gaming settings. ...
- Restart or upgrade your router. ...
- Upgrade your internet connection.
How do I optimize my computer for Windows 10? ›
- 1. Make sure you have the latest updates for Windows and device drivers. ...
- Restart your PC and open only the apps you need. ...
- Use ReadyBoost to help improve performance. ...
- 4. Make sure the system is managing the page file size. ...
- Check for low disk space and free up space.
If you get high pings at a consistent time it could be a routine network issue. Check the number of devices connected in the morning or at night. Other devices are likely hogging the network at these times. A large number of devices keeps your router busy and increases ping responses.
How do I reduce internet lag on my computer? ›...
To turn Game Mode on:
- Press the Windows Start button, and then select Settings.
- Choose Gaming > Game Mode.
- Turn Game Mode On.
No matter what game you are playing, you would experience significantly lower FPS if you had a slower internet connection. Slower internet connection causes higher ping, which in turn can make everything lag, so players may stop moving.
Is 0 ping possible? ›Therefore, it's not possible to achieve 0 ping between you and a remote server. As data takes time to travel, any additional distance between your PC and the game server would further add milliseconds to the ping value.
What is a good ping speed? ›Ping amounts of 100 ms and below are average for most broadband connections. In gaming, any amounts below a ping of 20 ms are considered exceptional and “low ping,” amounts between 50 ms and 100 ms range from very good to average, while a ping of 150 ms or more is less desirable and deemed “high ping.”
Does static IP reduce ping? ›A static IP does not improve ping. You can improve your network by using ethernet connections that run on static IPs, but their effects on ping are negligible.
Does opening ports reduce ping? ›Does Port Forwarding Reduce Ping? Port forwarding can reduce ping or latency, but this depends on the game you are playing. In some cases, port forwarding will allow you to connect directly with another player's device, which can improve your latency.
Does ethernet fix ping? ›Using an ethernet cable instead of a wireless connection will generally result in a lower ping. Unlike wireless methods, using ethernet is more reliable, offers lower latency and jitter, and is less likely to result in packet loss. All of these factors contribute towards achieving a lower ping.
Do LAN cables help ping? ›Lower Ping with Ethernet Cable! - YouTube
What is SG TCP Optimizer? ›
The SG TCP Optimizer is an "Internet Accelerator" which helps to dramatically boost your Internet speed. It optimizes Internet-related settings on your end of the connection (your PC), allowing for faster throughput. The program works with any Internet connection, from dialup to leased lines.
Why is my ping always so high? ›A high ping, for example, while gaming, is mostly caused by the way you connect to your router, the quality of copper line and/or the ISP. A traceroute can be done to troubleshoot the issue. A traceroute will show where the latency is coming from. Try moving closer to your router.
Why is my PC ping so high? ›The number of connected devices — If your house is full of people using their devices to connect to the internet, it's going to be using up bandwidth and raising your ping. Streaming high-quality video uses up a lot of bandwidth, but even somebody checking their emails is likely to have a small impact on your ping.
Will a better router improve ping? ›This is usually referred to as “ping.” A better router can improve latency, but only to a certain degree. For home internet, it's rare to get a server connection faster than approximately 30 milliseconds (that's three-hundredths of a second), and 50-100 milliseconds is more common.
Does Windows use TCP cubic? ›TCP CUBIC becomes even more interesting since Microsoft has decided that this version is a fundamental part of products such as Windows 10 and Windows Server 2019, as read in this document on the news of Windows Server 2019 and in this on Windows 10.
How does TCP flow control work? ›Transmission Control Protocol (TCP) uses a sliding window for flow control. Before you tune any TCP/IP settings, first understand how the TCP sliding window works. The TCP sliding window determines the number of unacknowledged bytes, x , that one system can send to another.
How does TCP detect congestion? ›TCP detects congestion when it fails to receive an acknowledgement for a packet within the estimated timeout. In such a situation, it decreases the congestion window to one maximum segment size (MSS), and under other cases it increases the congestion window by one MSS.
Do you have to keep TCP Optimizer open? ›No. The TCP Optimizer changes related settings in the Windows Registry. Once you run the program, apply the changes, and reboot, they're in effect until you decide to make changes. You only need to run the program again if / when you want to make changes to those settings again.
How do I lower my ping? ›- Play on a local server. ...
- Quit apps in the background. ...
- Ditch Wi-Fi and use Ethernet. ...
- Disconnect devices from your network. ...
- Tweak your gaming settings. ...
- Restart or upgrade your router. ...
- Upgrade your internet connection.
TCP stands for Transmission Control Protocol a communications standard that enables application programs and computing devices to exchange messages over a network. It is designed to send packets across the internet and ensure the successful delivery of data and messages over networks.
How do I lower my ping in Windows 10? ›
- Check Your Internet Speed to Reduce Lag. ...
- Check Your Router's Settings. ...
- Lower You Ping Using an Ethernet Connection. ...
- Close Any Background Apps Using Internet Bandwidth.
- Select Start, then type settings. Select Settings > Network & internet.
- Do one of the following: ...
- Next to IP assignment, select Edit.
- Under Edit network IP settings or Edit IP settings, select Automatic (DHCP) or Manual. ...
- When you're done, select Save.
There are three optimization profiles in Latency Optimizer that enable you to apply those optimization tweaks to your connection with just one click, though only one of them is available in the Free version.
How do I get a 1ms ping? ›HOW TO GET LOWER PING AND SPEED UP YOUR INTERNET!
Why is my ping so high but my internet is good? ›If you get high pings at a consistent time it could be a routine network issue. Check the number of devices connected in the morning or at night. Other devices are likely hogging the network at these times. A large number of devices keeps your router busy and increases ping responses.
Will Resetting router improve ping? ›Reset Your Modem and Router
Routers and modems cause hiccups with Internet connections all the time. Before you do anything on this list, try resetting your equipment. Unplug the power cables from the router and modem and wait at least thirty seconds before reconnecting them.
TCP and IP are two separate computer network protocols. IP is the part that obtains the address to which data is sent. TCP is responsible for data delivery once that IP address has been found.
Why do we use TCP? ›TCP is used for organizing data in a way that ensures the secure transmission between the server and client. It guarantees the integrity of data sent over the network, regardless of the amount. For this reason, it is used to transmit data from other higher-level protocols that require all transmitted data to arrive.
Why is TCP IP important? ›TCP/IP specifies how data is exchanged over the internet by providing end-to-end communications that identify how it should be broken into packets, addressed, transmitted, routed and received at the destination.