help me optimize tcp

Get help and discuss anything related to tweaking your internet connection, as well as the different tools and registry patches on the site. TCP Optimizer settings and Analyzer results should be posted here.
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pharmacist
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help me optimize tcp

Post by pharmacist »

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.14.2008 23:39
IP address: 219.93.xx.xxx

TCP options string: 020405640402080a019ce1e30000000001030300
MSS: 1380
MTU: 1420
TCP Window: 5840 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 5840
Recommended RWINs: 63480, 126960, 253920, 507840, 1015680
BDP limit (200ms): 234kbps (29KBytes/s)
BDP limit (500ms): 93kbps (12KBytes/s)
MTU Discovery: ON
TTL: 46
Timestamps: ON
SACKs: ON
IP ToS: 00000000 (0)

im using xp
modem huawei e220
celcom broadband d98 malaysia
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pharmacist
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Post by pharmacist »

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.15.2008 04:06
IP address: 203.82.xx.xxx

TCP options string: 020405640402080a044412b10000000001030300
MSS: 1380
MTU: 1420
TCP Window: 5840 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 5840
Recommended RWINs: 63480, 126960, 253920, 507840, 1015680
BDP limit (200ms): 234kbps (29KBytes/s)
BDP limit (500ms): 93kbps (12KBytes/s)
MTU Discovery: ON
TTL: 46
Timestamps: ON
SACKs: ON
IP ToS: 00000000 (0)
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trogers
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Post by trogers »

Try the following with TCP Optimizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU - 1420
TTL - 64
TCP Receive Window - 63480
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - uncheck
Timestamps - uncheck

Advanced Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 10
LocalPriority - 5
Host Priority - 6
DNSPriority - 7
NetbtPriority - 8
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
"Contentment is not the fulfillment of what you want, but is the realisation of how much you already have" - anon
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pharmacist
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Post by pharmacist »

trogers
when i change my tcp optimizer setting, i cant access internet, i can connect, i got 'sent' internet activity but do not got any 'received' internet activity
i need to run winsockfix, so my tcp optimizer all change to default, then i can access internet, but very very slow
i have tried more than 5 time to setting, but the outcome is same, internet cannot access
how to resolve it?
thx
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pharmacist
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Post by pharmacist »

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.15.2008 06:37
IP address: 203.82.xx.xxx

TCP options string: 020405640402080a021d269a0000000001030300
MSS: 1380
MTU: 1420
TCP Window: 5840 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 5840
Recommended RWINs: 63480, 126960, 253920, 507840, 1015680
BDP limit (200ms): 234kbps (29KBytes/s)
BDP limit (500ms): 93kbps (12KBytes/s)
MTU Discovery: ON
TTL: 46
Timestamps: ON
SACKs: ON
IP ToS: 00000000 (0)
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trogers
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Post by trogers »

pharmacist wrote:« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.15.2008 06:37
IP address: 203.82.xx.xxx

TCP options string: 020405640402080a021d269a0000000001030300
MSS: 1380
MTU: 1420
TCP Window: 5840 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 5840
Recommended RWINs: 63480, 126960, 253920, 507840, 1015680
BDP limit (200ms): 234kbps (29KBytes/s)
BDP limit (500ms): 93kbps (12KBytes/s)
MTU Discovery: ON
TTL: 46
Timestamps: ON
SACKs: ON
IP ToS: 00000000 (0)
TCP Window is stuck at 5840. If Winsockfix is working, it should be reset to default of 65535.

Are you using Karpersky antivirus?
"Contentment is not the fulfillment of what you want, but is the realisation of how much you already have" - anon
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pharmacist
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Post by pharmacist »

nope, im using avira free edition
actually last night i know that my network (celcom broadband) had problem (mayb maintainance issues)
many people (not all) facing same problem like me
who has ip 203.82.xx.xxx got this same problem
now waiting this problem settle first, then im trying tweak again
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pharmacist
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Post by pharmacist »

it seem my line back to normal now

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.16.2008 18:16
IP address: 219.93.xxx.xxx

TCP options string: 0204057801010402
MSS: 1400
MTU: 1440
TCP Window: 65535 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 65535
Recommended RWINs: 64400, 128800, 257600, 515200, 1030400
BDP limit (200ms): 2621kbps (328KBytes/s)
BDP limit (500ms): 1049kbps (131KBytes/s)
MTU Discovery: ON
TTL: 47
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

so how to optimize it?
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trogers
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Post by trogers »

Try the following with TCP Optimizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU - 1440
TTL - 64
TCP Receive Window - 64400
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - uncheck
Timestamps - uncheck

Advanced Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 10
LocalPriority - 5
Host Priority - 6
DNSPriority - 7
NetbtPriority - 8
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
"Contentment is not the fulfillment of what you want, but is the realisation of how much you already have" - anon
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pharmacist
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Post by pharmacist »

after optimize
but i dont feel any changes

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.17.2008 02:59
IP address: 219.93.xxx.xxx

TCP options string: 0204057801010402
MSS: 1400
MTU: 1440
TCP Window: 65535 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 65535
Recommended RWINs: 64400, 128800, 257600, 515200, 1030400
BDP limit (200ms): 2621kbps (328KBytes/s)
BDP limit (500ms): 1049kbps (131KBytes/s)
MTU Discovery: ON
TTL: 47
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)
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trogers
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Post by trogers »

pharmacist wrote:after change

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.17.2008 02:59
IP address: 219.93.xxx.xxx

TCP options string: 0204057801010402
MSS: 1400
MTU: 1440
TCP Window: 65535 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 65535
Recommended RWINs: 64400, 128800, 257600, 515200, 1030400
BDP limit (200ms): 2621kbps (328KBytes/s)
BDP limit (500ms): 1049kbps (131KBytes/s)
MTU Discovery: ON
TTL: 47
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)
Rerun the Optimizer. When done correctly, TCP Window should become 64400.
"Contentment is not the fulfillment of what you want, but is the realisation of how much you already have" - anon
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pharmacist
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Post by pharmacist »

after rerun optimizer

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.17.2008 03:37
IP address: 219.93.xxx.xxx

TCP options string: 0204057801010402
MSS: 1400
MTU: 1440
TCP Window: 65535 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 65535
Recommended RWINs: 64400, 128800, 257600, 515200, 1030400
BDP limit (200ms): 2621kbps (328KBytes/s)
BDP limit (500ms): 1049kbps (131KBytes/s)
MTU Discovery: ON
TTL: 47
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)


how to change TCP windows to 64400? everytime i click uncheck Windows Scalling it will change to 65535
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napsters
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Post by napsters »

pharmacist wrote:after rerun optimizer

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.17.2008 03:37
IP address: 219.93.xxx.xxx

TCP options string: 0204057801010402
MSS: 1400
MTU: 1440
TCP Window: 65535 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 65535
Recommended RWINs: 64400, 128800, 257600, 515200, 1030400
BDP limit (200ms): 2621kbps (328KBytes/s)
BDP limit (500ms): 1049kbps (131KBytes/s)
MTU Discovery: ON
TTL: 47
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)


how to change TCP windows to 64400? everytime i click uncheck Windows Scalling it will change to 65535

Hello pharmacist..
uncheck Windows Scalling first and do all setting that Trogers recommend to you...
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pharmacist
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Post by pharmacist »

napster, ive done what Trogers recommend to setting
and the analyzer result above all the setting i follow the recommendation by Trogers
anything else to do?
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trogers
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Post by trogers »

pharmacist wrote:napster, ive done what Trogers recommend to setting
and the analyzer result above all the setting i follow the recommendation by Trogers
anything else to do?
Much of a stable and good speed with cell phone internet lines depend on a consistently strong cell phone signal between you and the tower. You can try placing an external antenna to get good reception.
"Contentment is not the fulfillment of what you want, but is the realisation of how much you already have" - anon
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pharmacist
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Post by pharmacist »

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.20.2008 09:45
IP address: 219.93.xxx.xxx

TCP options string: 0204057801010402
MSS: 1400
MTU: 1440
TCP Window: 64400 (multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 64400
Recommended RWINs: 64400, 128800, 257600, 515200, 1030400
BDP limit (200ms): 2576kbps (322KBytes/s)
BDP limit (500ms): 1030kbps (129KBytes/s)
MTU Discovery: ON
TTL: 47
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

my new setting
so what after?
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trogers
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Post by trogers »

Test speed at the Malaysian test servers of http://www.speedtest.net
"Contentment is not the fulfillment of what you want, but is the realisation of how much you already have" - anon
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pharmacist
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Post by pharmacist »

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.20.2008 09:58
IP address: 219.93.xxx.xx

TCP options string: 020405780103030201010402
MSS: 1400
MTU: 1440
TCP Window: 257600 (multiple of MSS)
RWIN Scaling: 2 bits (2^2=4)
Unscaled RWIN : 64400
Recommended RWINs: 64400, 128800, 257600, 515200, 1030400
BDP limit (200ms): 10304kbps (1288KBytes/s)
BDP limit (500ms): 4122kbps (515KBytes/s)
MTU Discovery: ON
TTL: 48
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

the latest setting
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Post by pharmacist »

Image
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Post by pharmacist »

new result

Image
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Rollingstone
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Post by Rollingstone »

TCP Window: 257600 (multiple of MSS)
Rerun TCP Settings that trogers gave you, when done correctly , your TCP Window should be 64400.
What makes you: "...waking up in the morning so excited about & wanna FLY out of the door ?"
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pharmacist
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Post by pharmacist »

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.22.2008 18:11
IP address: 219.93.xxx.xxx

TCP options string: 0204057801010402
MSS: 1400
MTU: 1440
TCP Window: 64400 (multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 64400
Recommended RWINs: 64400, 128800, 257600, 515200, 1030400
BDP limit (200ms): 2576kbps (322KBytes/s)
BDP limit (500ms): 1030kbps (129KBytes/s)
MTU Discovery: ON
TTL: 47
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

Image

can optimize more?
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trogers
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Post by trogers »

[quote="pharmacist"]

I suspect so. Your upload speed is very low. Could be due to some malware in your comp.

Clean your comp with CCleaner and scan with

SpyBot
Ad-Aware 2008
Super antispyware
"Contentment is not the fulfillment of what you want, but is the realisation of how much you already have" - anon
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