TCP Optimizer - Tips For BEGINNERS

Rollingstone · Post by **Rollingstone** » Fri Jan 25, 2008 2:01 am

TCP Optimizer - Tips For BEGINNERS:

TCP Optimizer settings for Win 7 : first download lastest TCP Optimizer http://www.speedguide.net/files/TCPOptimizer.exe

Custom Settings > MTU 1500 (cable internet), 1492 (ADSL) > Optimal > Restart > RWIN SCaling > 0 => Done

What's TCP Optimizer ? http://www.speedguide.net/downloads.php

TCP Settings :

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU ?
TTL - 64
TCP Receive Window - ?
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - ?
Timestamps - uncheck

Advanced Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 10
LocalPriority - ?
Host Priority - ?
DNSPriority - ?
NetbtPriority - ?
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 80
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768
Then select "Apply Changes" and reboot to take effect

How to get MTU ?
Just use TCP/IP Analyzer http://www.speedguide.net:8080

How to get proper RWIN ? (TCP Receive Window)

RWIN DEPENDS ON FOLLOWING FACTORS

+ Bandwidth
+ Which country we are in
+ Which country we surf frequently

Formula

RWIN = BANDWIDTH (DOWNLOAD) * MAX.LATENCY /8

MAX.LATENCY : we should only assume worst latency to the country we surf to most often and stick with it.

+ We should make RWIN an EVEN multiple of MSS

+ Satellite or Wireless should use larger RWIN values because of the high latency

AFTER ALL THOSE CALCULATIONS, HERE IS A VERY ROUGH BREAKDOWN OF THE ****YZER RECOMMENDED VALUES...

If MTU = 1500

513920 -- works for ~8 to ~30 Mbps
256960 -- 2 to 14 Mbps
128480 -- 1 to 5 Mbps
64240 -- works well up to ~2 Mbps.

If MTU = 1492

511104 -- works for ~8 to ~30 Mbps
255552 -- 2 to 14 Mbps
127776 -- 1 to 5 Mbps
63888 -- works well up to ~2 Mbps.

If MTU < 1472

+ Log into your modem/router and set MTU according to your connection type.
+ LEAVE RWIN BLANK and Uncheck Window Scaling
+ Use WinSockFix
+ Update your modem's firmware to get higher MTU
+ Uninstall tweak programs like cfos Speed

If TCPOptimizer can not adjust your RWIN , try enter the value for DefaultReceiveWindow in Cablenut

Windows Scaling
Check Windows Scaling when RWIN > 65535

Constant Values:
Custom settings - check
Modify All Network Adapters - check
TTL - 64
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
Timestamps - uncheck
MaxConnectionsPerServer - 10
MaxConnectionsPer1_0Server - 10
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 80
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768

LocalPriority - 5
Host Priority - 6
DNSPriority - 7
NetbtPriority - 8

Chech your modem/router signals

Why ? : figure out : lag, slow , disconnect issues...

How: do a tracert :

Start > Run > type cmd then enter > type tracert yahoo.com then enter > when finished > Righ click > Select all > Paste into Quick Reply box of this forum.

Tracert sample :

Tracing route to yahoo.com [72.30.2.43]
over a maximum of 30 hops:

1 1 ms <1 ms <1 ms 192.168.0.1
2 1 ms 1 ms 1 ms 202.202.2.2
3 * 3283 ms 3173 ms 118.69.255.122
4 683 ms 109 ms 23 ms 118.69.254.129
5 1791 ms 2501 ms 988 ms 118.69.253.69
6 129 ms 24 ms 24 ms 118.69.253.129
7 * * 3266 ms 202.97.5.169
8 2083 ms 938 ms 896 ms 202.97.52.58
9 824 ms 3224 ms * 202.97.49.94
10 758 ms 722 ms 244 ms 202.97.50.34
11 657 ms 916 ms 260 ms 192.205.35.81
12 1648 ms 389 ms 271 ms cr1.la2ca.ip.att.net [12.122.128.102]
13 513 ms 438 ms 257 ms cr1.sffca.ip.att.net [12.122.3.121]
14 1119 ms 345 ms 538 ms cr83.sffca.ip.att.net [12.123.15.110]
15 522 ms 574 ms 292 ms 12.122.137.93
16 1528 ms 860 ms 489 ms 12.86.154.18
17 702 ms 309 ms 2768 ms ae1-p410.msr2.sk1.yahoo.com [216.115.106.157]
18 * 2016 ms 2182 ms te-8-1.bas-k2.sk1.yahoo.com [68.180.160.11]
19 1579 ms 1659 ms * ir1.fp.vip.sk1.yahoo.com [72.30.2.43]
20 2238 ms 1899 ms 1888 ms ir1.fp.vip.sk1.yahoo.com [72.30.2.43]

Trace complete.

How to read tracert :

Hop 1 : shows signals between modem & PC, It should be 1ms 1ms 1ms ! Higher or occur * or Request timed out=> not good !

Hop 2: shows signals between modem & ISP It should range from 10 to 40 ms ! Higher or occur * or Request timed out => not good !

From Hop 3 to trace complete : ISP Network Signals, * or Request timed out => Not Good !

How to fix Hop 1 & 2 issue :

+Turn off modem/router for 10 minutes, relocate them to some place that are a few feet away from ALL other electrical devices, including apart from each other.Also, make sure you do not coil up any excess length of signal or power cables.

Then do a tracert again ! Hope this helps !

If not :

Do a full scan for malware/spyware with :

Ad-aware
Spybot Search & Destroy
Superantispyware

+ Disable unnecessary items :

Start > Run > type "msconfig" > StartUp tab > Uncheck unnecessary items

+ Using OpenDNS :

Start > Control Panel > Network Connection > Choose your Network > Properties > Internet Protocol (TCP/IP) > Properties > Use the following DNS server addresses => 208 67 222 222, 208 67 220 220.

Firefox Tweaks :

Firefox SSE2 Optimized tete009 aka Namoroka (considered fastest Firefox):
http://www1.plala.or.jp/tete009/en-US/software.html

Why ?

Browser Bench Mark by Future Mark : http://service.futuremark.com/peacekeeper/

For Specs : 1.5 mbps line, E5200, 2GB RAM, G31 Intel Graphics

With Normal Firefox:

With Namoroka tete009 :

Running Firefox on RAMDISK :

This procedure helps Firefox faster boot and faster access Awesome Bar (address bar) than the hard drive many times.

First you download the program Vsuite RamDisk (Public Edition) Free http://www.romexsoftware.com/download/ After downloading, click on the icon VSuite Ramdisk (Public Edition) on the Desktop to run the program. The main interface contains the following options:

Disk Size: RAM disk size
Drive Letter: Choose a name for the RAM drive (eg R)
File System: NTFS
Volume Labe: Naming the RAM drive (eg RamDisk)
Enable NTFS Compression: Enabling NTFS file compression
Enable Image File: check "Save at Computer Shutdown", Save format: Direct Mirror. Because files loaded into RAM they will be automatically deleted after booting Windows! With this function you can keep files to run later. This file will be saved as VDF format, only to be placed on the Windows drive (usually drive C)

However, this feature also slows down the boot time of Windows, due to loading VDF file on startup. Image File will be using Disk storage size, the larger the Windows boot time slower, so keep at 100 Mb (SATA speed that can manage)

After setup is completed, select Add. Vsuite will simulate a RAM drive R: \ on your computer. You now have a virtual hard drive with fast access speed. Done, go to Windows Explorer > Copy the files in the Firefox installation directory (usually Program Files \ Mozilla) to Firefox RAM drive. Now, you have a Firefox RAM.

Also, if you want to intergrate addons, bookmarks ... try the following procedure:

In R: \ Mozilla Firefox folder > create a folder named FFProfile , then copy whole folder C: \ Documents and Settings \ [Username]\ Application Data \ Mozilla \ Firefox \ Profiles \ ******** . default \ folder FFProfile. (8 stars stands for 8 random characters ) to FFProfile

Create Firefoxram.bat

start firefox.exe -profile FFProfile -no-remote

Then save as name Firefoxram.bat (Save as type is All Files) in directory R: \ Mozilla Firefox.

Run Firefoxram.bat to activate Firefox RAM!

Conclusion:

Benefits:

+ Fix the slow startup time of Firefox, especially after booting Windows, very useful when you install multiple addons (extensions), large bookmarks, large cache size - those components affecting performance of Firefox.

Disadvantage: Make Windows boot a bit slower due to image file (VDF)

+ How VDF file affects Windows boot time (tested on the Seagate HDD 7200 RPM 8 MB Cache )

RamDisk capacity:

512 MB => Long boot time
200 MB => Acceptable boot time
120 MB => Almost Normal boot time

It may vary depending on the type of your Hardisk !

Note: If you want to remove the Vsuite RamDisk, disable your RAMDISK first !

Firefox Popular Tweaks :

FireFox > type about:config in Awesomebar (Addressbar) > type connection in Filter then set :

network.http.max-connections : 32
network.http.max-connections-per-server: 16
network.http.max-persistent-connections-per-proxy:16
network.http.max-persistent-connections-per-server:8

FireFox > type about:config in Awesomebar (Addressbar) > Right click on blank space > New > Integer > type nglayout.initialpaint.delay > 0

FireFox > about:config > Filter: pipelining > network.http.pipelining > true

FireFox > about:config > New Integer > network.http.pipelining.maxrequests > 8

Using Addon for Speed

+ Ablock Plus
+ Element Hiding Helper(kill text ads just press Ctrl+Shift + K )

+ ImglikeOpera & Noscript (you must be a Firefox Geek)

Source : translated from http://tangtocnet.com/index.php?showtopic=4782

More Useful Links :

RWIN in Vista

Wireless Tips

Dr Tweak

Speedtest

HijackThis

IP Lookup

SNR & Line Attenuation

Vietnam ADSL Zone

Kamikize · Post by **Kamikize** » Mon Jan 28, 2008 12:40 am

What would you say , Trogers ?

trogers · Post by **trogers** » Mon Jan 28, 2008 4:58 am

Kamikize wrote:What would you say , Trogers ?

TCP Window size depends on bandwidth and max. latency and different countries or different continents will have different rules of thumb.

Default ToS value can be different. Suggested values that conform to both ToS and Diffserv standards are 80, 104 and 136 - http://www.speedguide.net/tcpoptimizer.php#advanced_qos

Some ISPs may not accept any value set to it other then zero.

Rollingstone · Post by **Rollingstone** » Mon Jan 28, 2008 5:05 am

trogers wrote:TCP Window size depends on bandwidth and max. latency and different countries or different continents will have different rules of thumb.

Some ISPs may not accept any value set to it other then zero.

Could You tell more , Trogers ?

trogers · Post by **trogers** » Mon Jan 28, 2008 5:21 am

Rollingstone wrote:Could You tell more , Trogers ?

The differences are due to differing max. latency - the time for a full sized packet to make the round trip. Thus it depends on where you are and which country you surf to most often.

If we use the US as the most surfed to place, then latency for users in East and South East Asia will be 450-550ms depending on time of day.

A user in the US will only face latency of 90-130ms. Thus TCP Window Size will be different for the same bandwidth.

Rollingstone · Post by **Rollingstone** » Mon Jan 28, 2008 5:32 am

trogers wrote: latency for users in East and South East Asia will be 450-550ms depending on time of day.

A user in the US will only face latency of 90-130ms. Thus TCP Window Size will be different for the same bandwidth.

How about latency for users in West ?

How to deal with the DISTANCE PROPBLEM ?

Sometimes , the TCP Window is left BLANK , Could you explain?

trogers · Post by **trogers** » Mon Jan 28, 2008 5:52 am

Rollingstone wrote:How about latency for users in West ?

How to deal with the DISTANCE PROPBLEM ?

Sometimes , the TCP Window is left BLANK , Could you explain?

All users face the same problem - a user in the US who frequents sites in Asia, or one in Australia to the UK, etc. Once you consider surfing to a different continent, latency will shoot up due not only to distance but also congestion along the international cable link.

There is nothing you can do at your end about latency along international links but to use a TCP Window sized appropriately.

TCP Window is left blank only in settings to try increasing MTU when TCP Analyzer reported some value that is not 1500, 1492 or 1480. When it is left blank with Window scaling unchecked, TCP Window will revert to default value 65535. If scaling is checked, the value will go above 10 million.

jasonb31 · Post by **jasonb31** » Tue Jan 29, 2008 8:52 pm

Trodgers have you tried the Opera browser? What do you think about it? As far as I have seen there is no need to tweak it as you have said that Fire Fox does need some.

jasonb31 · Post by **jasonb31** » Tue Jan 29, 2008 8:57 pm

Why cant my Dell with XP find “gpedit.msc” ? or gpedit.msc? Any Ideas?

trogers · Post by **trogers** » Tue Jan 29, 2008 9:11 pm

jasonb31 wrote:Trodgers have you tried the Opera browser? What do you think about it? As far as I have seen there is no need to tweak it as you have said that Fire Fox does need some.

I use Opera when I do not need to see graphics. It has an easy switch mode.

Did you log into XP with Admin right's to run gpedit.msc?

jasonb31 · Post by **jasonb31** » Tue Jan 29, 2008 9:18 pm

Yes I am in the administor account. You dont like the Opera graphics? Is that what you are saying?

trogers · Post by **trogers** » Tue Jan 29, 2008 9:31 pm

jasonb31 wrote:Yes I am in the administor account. You dont like the Opera graphics? Is that what you are saying?

Opera has no option to adjust graphic sizes unlike FireFox with add-on to zoom, fit to screen or reduce. I turn off graphic to enjoy page loading speed when surfing to reports and news sites.

jasonb31 · Post by **jasonb31** » Tue Jan 29, 2008 9:38 pm

I see!! Have any Ideas on the gpedit.msc thing? Maybe a Microsoft update killed that option? Just an Idea.

jasonb31 · Post by **jasonb31** » Tue Jan 29, 2008 9:54 pm

From what I have out so far is that you need to have XP Pro to do that. I have XP Home.

Rollingstone · Post by **Rollingstone** » Tue Jan 29, 2008 10:07 pm

I am using WinXP Pro and the Group Policy (gpedit.msc) has worked properly.

You can try "Regedit"

trogers · Post by **trogers** » Tue Jan 29, 2008 10:47 pm

Rollingstone wrote:I am using WinXP Pro and the Group Policy (gpedit.msc) has worked properly.

You can try "Regedit"

I believe gpedit.msc is only available in Windows Server 2003, Windows 2000, or Windows XP Professional and not XP Home.

jasonb31 · Post by **jasonb31** » Tue Jan 29, 2008 11:46 pm

Regedit pulls up all kinds of things. I dont have a clue what to do after pulling that up, Even if something can be done there.

trogers · Post by **trogers** » Wed Jan 30, 2008 1:39 am

jasonb31 wrote:Regedit pulls up all kinds of things. I dont have a clue what to do after pulling that up, Even if something can be done there.

You cannot set QoS to zero with regedit.

karak · Post by **karak** » Wed Jan 30, 2008 2:02 am

Im new here so hello to all. What i used was FRESH UI, windows xp home does not allow for this function, so FRESH UI came in very handy.

jasonb31 · Post by **jasonb31** » Wed Jan 30, 2008 8:06 pm

And did what with it?

Raizy · Post by **Raizy** » Wed Jan 30, 2008 8:08 pm

I saw this thread: https://www.speedguide.net/forums/viewtopic.php?t=236450

What would TCP Receive window be for 1440 MTU ?

jasonb31 · Post by **jasonb31** » Wed Jan 30, 2008 8:28 pm

Move the slider at the top to match 7mb

Make sure you reset all the changes I recomended, Warning sometimes you have to do it twice in order to get it to stick.

Rollingstone · Post by **Rollingstone** » Sun Feb 03, 2008 1:54 am

More Useful Links :

Dr Tweak

CableNut Tweaks

Speedtest

Ping Plotter

HijackThis

Show your IP

IP Lookup

Milezy · Post by **Milezy** » Sun Feb 03, 2008 3:48 pm

If the optimizer makes my internet worse. How do I restore back my original settings?

mccoffee · Post by **mccoffee** » Sun Feb 03, 2008 3:59 pm

In the optimizer click on file then should be a reset to default or default settings.

Milezy · Post by **Milezy** » Sun Feb 03, 2008 4:03 pm

mccoffe could you look in my topic please

i_am_nOobie · Post by **i_am_nOobie** » Thu Apr 10, 2008 1:19 am

Sir PLEASE HELP ME TWEAK MY CONNECTION plz
I am using SmartBro> Motorola Canopy Lite 5.7ghz

Canopy Lite - 5.7GHz - Subscriber Module - 0a-00-3e-d1-36-a7

Device Information
Device Type : Canopy Lite - 5.7GHz - Subscriber Module - 0a-00-3e-d1-36-a7
Software Version : CANOPY 8.1.5 SM-DES
Software BOOT Version : CANOPYBOOT 1.0
Board Type : P10
FPGA Version : 111306
PLD Version : 11
Uptime : 01:47:50
System Time : 16:14:27 04/25/2001
Ethernet Interface : 10Base-T Full Duplex
Antenna Polarization : Vertical

Subscriber Module Stats
Session Status : REGISTERED VC 96 Rate 1X/1X
RSSI : 578
Power Level : -76 dBm
Jitter : 3
Air Delay : 110 approximately 1.02 miles (5390 feet)

Key Features Information
Maximum Throughput : 1 Mbps Aggregate

%********************************************%

as of today I don't know how use ANY optimizers ex. CableNut
plz recommend any further solutions..

thankyou!

« Running Apps »
Nod32v3
SUPERAntiSpywarePRO

« Running Apps in background »
GoogleDesktop
SiS UtilityTray
Windows Messenger - not signed in
Realtek HD Audio Manager

No spywares/adwares/viruses/malwares present in my computer sir..
in 2007 i did try to tweak my connection with a fake TZ connection booster and it just improved a little bit ex.20kb to 23kb

PS: Online games always lagg! Rakion, Gundbound, etc.

i hope you could help me!!
%********************************************%

« SpeedGuide.net TCP Analyzer Results »
Tested on: 04.10.2008 00:02
IP address: 203.84.xxx.xxx

TCP options string: 020405b40103030001010402
MSS: 1460
MTU: 1500
TCP Window: 33580 (multiple of MSS)
RWIN Scaling: 0
Unscaled RWIN : 33580
Reccomended RWINs: 64240, 128480, 256960, 513920
BDP limit (200ms): 1343kbps (168KBytes/s)
BDP limit (500ms): 537kbps (67KBytes/s)
MTU Discovery: ON
TTL: 42
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

%********************************************%
« Speedtest.net Results »
Tested on: 04.10.2008 00:02
IP address: 203.84.xxx.xxx

%********************************************%

Microsoft Windows XP [Version 5.1.2600]

(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\User>tracert http://www.yahoo.com

Tracing route to http://www.yahoo-ht3.akadns.net [209.131.36.158]
over a maximum of 30 hops:

1 11 ms 9 ms 7 ms 192.168.224.1
2 16 ms 13 ms 15 ms 203.84.181.237
3 27 ms 24 ms 23 ms 121.54.3.1
4 22 ms 22 ms 24 ms 203.111.225.34
5 20 ms 22 ms 19 ms 203.111.226.13
6 21 ms 19 ms 18 ms 124.83.5.53.pldt.net [124.83.5.53]
7 18 ms 22 ms 24 ms 58.71.0.143
8 233 ms 229 ms 229 ms if-7-2.mcore4.LAA-LosAngeles.teleglobe.net [216.6.85.29]
9 235 ms 241 ms 232 ms if-5-0.mcore4.PDI-PaloAlto.teleglobe.net [216.6.86.9]
10 238 ms 244 ms 274 ms if-0-0.core3.PDI-PaloAlto.Teleglobe.net [207.45.196.77]
11 234 ms 234 ms 239 ms ix-6-2.core3.PDI-PaloAlto.Teleglobe.net [207.45.213.130]
12 242 ms 236 ms 242 ms g-0-0-0-p140.msr1.sp1.yahoo.com [216.115.107.49]
13 237 ms 239 ms 245 ms te-8-1.bas-a2.sp1.yahoo.com [209.131.32.19]
14 247 ms 239 ms 237 ms f1.http://www.vip.sp1.yahoo.com [209.131.36.158]

Trace complete.

trogers · Post by **trogers** » Thu Apr 10, 2008 1:26 am

i_am_nOobie wrote:********************************************%
« Speedtest.net Results »
Tested on: 04.10.2008 00:02
IP address: 203.84.xxx.xxx

%********************************************%

What speed did you pay your ISP to give you?

mccoffee · Post by **mccoffee** » Mon Apr 14, 2008 2:48 pm

I belive only philip can lock threads ,and maybe some of the mods. You'll have to talk to him about all that.

DickDiver · Post by **DickDiver** » Thu May 08, 2008 5:24 am

Hi thanks for the guide!

One big question bothers me. Browsing internet by wlan is fine but I have got a network HP printer connected by LAN wire and it prints damn slow.
It is a HP laserjet 2100TN with 8mb or 12mb. Anyway, I used TCPoptimizer and tuned 'only' my WLAN adapter for 1492 PPPOE and 16.000 advertised dl speed.
The question is, have I to adjust the LAN adapter to which my printer connects, too? Is it possible that the printer has problems with a MTU of 1492 or a much too high RWIN?

thanks
DD from Germany

Rollingstone · Post by **Rollingstone** » Thu May 08, 2008 8:25 am

You can try LAN Tweaking : http://www.speedguide.net/read_articles.php?id=1607

DickDiver · Post by **DickDiver** » Thu May 08, 2008 11:31 am

Thank you Rollingstone

I will try that.

Post by **Philip** » Thu Sep 11, 2008 9:46 am

About those two settings:
Max Connections per Server
Max Connections per 1.0 Server

Many web servers do not support too many concurrent connections, setting to a number over 10 can cause problems loading some pages, or excessive repeat requests. I'd recommend setting both to 8 or 10 max.

Rollingstone · Post by **Rollingstone** » Fri Sep 19, 2008 5:01 am

trogers wrote:You cannot set QoS to zero with regedit.

I believe it is QoS: NonBestEffortLimit - 0 in TCP Optimizer !

dlsayremn · Post by **dlsayremn** » Sat Sep 20, 2008 12:41 pm

I was just wondering if you should have a warning about using Optimizer with Vista. Seems the consensus right now is to not use it with Vista.

dlsayremn · Post by **dlsayremn** » Sat Sep 20, 2008 1:44 pm

Someone may have already asked this, but shouldn't you have a cautionary note about using Optimizer and some of the Vista tweaks, esoecially the Autotuning ones, before seeking help? Seems the consensus right now is not to use Optimizer with Vista. Most of the posts I am seeing right now with Vista OS are because Optimizer was used and didn't work or the connection is worse.

I ran Optimizer on my Vista without any real problems last yesr.
Disabled Autotuning, ran Optimizer using custom settings and then enabled Autotuning.
Before doing this I was getting about 800/650 max from speedtedt.net

My System
Compaq Presario SR2180Nx
Vista Home Premium SP1
Intel Pentium D CPU (Dual Core) 2800MHz
RAM 3062 MB
Intel PRO/100 VE Network Connection
connected to 2wire 2101GG-D Trained 1536/960 kbps
ISP Qwest Silver (1500/1000)

Speedtest.net test results from Minneapolis today

LA ping 207 ms, 1338/685 kbp/s
Dallas ping 74ms 1424/788 kbps

« SpeedGuide.net TCP Analyzer Results »
Tested on: 09.20.2008 13:04
IP address: 63.231.xxx.xxx
TCP options string: 020405b40103030201010402
MSS: 1460
MTU: 1500
TCP Window: 65700 (multiple of MSS)
RWIN Scaling: 2
Unscaled RWIN : 16425
Recommended RWINs: 64240, 128480, 256960, 513920, 1027840
BDP limit (200ms): 2628kbps (329KBytes/s)
BDP limit (500ms): 1051kbps (131KBytes/s)
MTU Discovery: ON
TTL: 49
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

Microsoft Windows [Version 6.0.6001]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\PC>netsh int tcp show global
Querying active state...

TCP Global Parameters
----------------------------------------------
Receive-Side Scaling State : enabled
Chimney Offload State : disabled
Receive Window Auto-Tuning Level : normal
Add-On Congestion Control Provider : ctcp
ECN Capability : disabled
RFC 1323 Timestamps : disabled

LM14s · Post by **LM14s** » Sat Oct 04, 2008 2:21 am

I'm new to this forum, so please be patient with me..

I'm using 3 Usb Modem (7.2mbps max). I'm on the advertised max 3.6mbps broadband.

« SpeedGuide.net TCP Analyzer Results »
Tested on: 10.04.2008 01:32
IP address: xxx.xx.xxx.xx

TCP options string: 020405b4
MSS: 1460
MTU: 1500
TCP Window: 17520 (multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 17520
Recommended RWINs: 64240, 128480, 256960, 513920, 1027840
BDP limit (200ms): 701kbps (88KBytes/s)
BDP limit (500ms): 280kbps (35KBytes/s)
MTU Discovery: ON
TTL: 112
Timestamps: OFF
SACKs: OFF
IP ToS: 00000000 (0)

I'm on Win XP sp2.

« SpeedGuide.net Speed Test Results »
33 kbps down (~0.03 Mbps, 4 KB/s)↓
62 kbps up (~0.06 Mbps, 8 KB/s)↑
250 KB downloaded in 62.156 seconds
100 KB uploaded in 13.25 seconds
Tested on: 2008.10.04 01:37 EDT

Previously I've tested the speed both off-peak and peak hour. I live in Malaysia. My friend who subscribed for 384kbps once had a chance to get some 500kbps. I couldn't pass the 3.6Mbps advertised to me. I think i have gained 2mbps or so, but for maybe once or twice. Other than that, it would be an annoying less than 1mbps, and even slower..let alone 3mbps. By the way, modem shows either HSDPA or 3G. Very unlikely to fall below that.

I've tried FullSpeed 3.0, then SC Net Speed Booster before removed them. I did use the SG TCP Optimizer 2.0.3 and followed the guidelines in this website, and forum. But then restored the default windows settings.

I'm very new to the internet , but I know, it's not even half of what i've paid for. Oh, by the way, the speedtest.net shows the wrong location (I don;t know..500 or 600 miles away) where I should be. I read somewhere that says my broadband Plan has a 5gb limitation cap each month.

In advance, I thank you sir.

Angelinedev · Post by **Angelinedev** » Sat Oct 04, 2008 6:03 pm

LM14's , i think we both are using the same IP,maybe you wanna refer to my topic which i already started and some of the pro's are actually helping me reg the tweak,there some tips there tht might help you and we might be able to help each other out too.my location is in johor.

https://www.speedguide.net/forums/viewtopic.php?t=246064

LM14s · Post by **LM14s** » Tue Oct 07, 2008 9:33 pm

Angelinedev wrote:LM14's , i think we both are using the same IP,maybe you wanna refer to my topic which i already started and some of the pro's are actually helping me reg the tweak,there some tips there tht might help you and we might be able to help each other out too.my location is in johor.

https://www.speedguide.net/forums/viewtopic.php?t=246064

Thanks Angelinedev.. I tried few settings:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 10.07.2008 19:33
IP address: 219.93.xxx.xx

TCP options string: 020405b40103030301010402
MSS: 1460
MTU: 1500
TCP Window: 513920 (multiple of MSS)
RWIN Scaling: 3 bits (2^3=8)
Unscaled RWIN : 64240
Recommended RWINs: 64240, 128480, 256960, 513920, 1027840
BDP limit (200ms): 20557kbps (2570KBytes/s)
BDP limit (500ms): 8223kbps (1028KBytes/s)
MTU Discovery: ON
TTL: 48
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

« SpeedGuide.net Speed Test Results »
767 kbps down (~0.77 Mbps, 94 KB/s)↓
111 kbps up (~0.11 Mbps, 14 KB/s)↑
1024 KB downloaded in 10.938 seconds
250 KB uploaded in 18.406 seconds
Tested on: 2008.10.07 19:40 EDT
Tested from: biznetnetworks.com

« SpeedGuide.net Speed Test Results »
801 kbps down (~0.8 Mbps, 98 KB/s)↓
111 kbps up (~0.11 Mbps, 14 KB/s)↑
1024 KB downloaded in 10.469 seconds
250 KB uploaded in 18.39 seconds
Tested on: 2008.10.07 19:36 EDT
Tested from: biznetnetworks.com

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Then i've changed it:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 10.07.2008 19:59
IP address: 219.93.xxx.xx

TCP options string: 020405b40103030201010402
MSS: 1460
MTU: 1500
TCP Window: 256960 (multiple of MSS)
RWIN Scaling: 2 bits (2^2=4)
Unscaled RWIN : 64240
Recommended RWINs: 64240, 128480, 256960, 513920, 1027840
BDP limit (200ms): 10278kbps (1285KBytes/s)
BDP limit (500ms): 4111kbps (514KBytes/s)
MTU Discovery: ON
TTL: 48
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

« SpeedGuide.net Speed Test Results »
874 kbps down (~0.87 Mbps, 107 KB/s)↓
111 kbps up (~0.11 Mbps, 14 KB/s)↑
1024 KB downloaded in 9.594 seconds
250 KB uploaded in 18.407 seconds
Tested on: 2008.10.07 20:02 EDT
Tested from: biznetnetworks.com

« SpeedGuide.net Speed Test Results »
774 kbps down (~0.77 Mbps, 94 KB/s)↓
112 kbps up (~0.11 Mbps, 14 KB/s)↑
1024 KB downloaded in 10.844 seconds
250 KB uploaded in 18.359 seconds
Tested on: 2008.10.07 20:06 EDT
Tested from: biznetnetworks.com

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

This, when i use SpeedConnect Internet Accelerator, Auto optimized for 3 Mbps.

« SpeedGuide.net TCP Analyzer Results »
Tested on: 10.07.2008 20:19
IP address: 219.93.xxx.xx

TCP options string: 020405b40103030201010402
MSS: 1460
MTU: 1500
TCP Window: 251120 (multiple of MSS)
RWIN Scaling: 2 bits (2^2=4)
Unscaled RWIN : 62780
Recommended RWINs: 64240, 128480, 256960, 513920, 1027840
BDP limit (200ms): 10045kbps (1256KBytes/s)
BDP limit (500ms): 4018kbps (502KBytes/s)
MTU Discovery: ON
TTL: 48
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

« SpeedGuide.net Speed Test Results »
662 kbps down (~0.66 Mbps, 81 KB/s)↓
107 kbps up (~0.11 Mbps, 13 KB/s)↑
1024 KB downloaded in 12.672 seconds
250 KB uploaded in 19.187 seconds
Tested on: 2008.10.07 20:24 EDT
Tested from: biznetnetworks.com

« SpeedGuide.net Speed Test Results »
575 kbps down (~0.58 Mbps, 70 KB/s)↓
110 kbps up (~0.11 Mbps, 13 KB/s)↑
1024 KB downloaded in 14.578 seconds
250 KB uploaded in 18.547 seconds
Tested on: 2008.10.07 20:29 EDT
Tested from: biznetnetworks.com

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Then i've decided to rest on TCP Window: 256960.
Well, I don't know if thats the only pace i could get.
Speedtest.net shows somewhere in Sarawak or Sabah..while i stay in Johor.

Anyway, i really2 appreciate your help.

JACOMO · Post by **JACOMO** » Sun Oct 19, 2008 5:49 pm

PLEASE I NEED HELP!!!!!!!!!!!!!

CAN I USE 65535 IN LAN REQUEST BUFFER SIZE, USING TCP OPTIMIZER?

THE PROGRAM SUGGEST 16384 IN OPTIMAL SETTINGS AND SOMEBODY TELLS 35540.

MY EMAIL IS jai1732@gmail.com.

regards.

SG Broadband Community

TCP Optimizer - Tips For BEGINNERS

TCP Optimizer - Tips For BEGINNERS

Smartbro (Phillipines) Need Help Tweaks

Don't Use Optimizer with Vista unless told to do so.

Anyone, anyone, please help me..