Please tweak my NEW Connection Settings

MakaveLLi · Post by **MakaveLLi** » Mon Nov 23, 2009 12:38 am

Just had Cable internet installed (replaced 3 Mbps AT&T DSL) and need to update my TCPOptimizer settings. Info below. Thanks.
----------------------------------------------

ISP: Charter High Speed Internet (Cable)
Speed: 10 Mbps UP/2 Mbps DOWN
Router: Netgear WNR3500

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.23.2009 00:32
IP address: 24.205.xx.xx
Client OS: Windows XP

TCP options string: 020405ac01010402
MSS: 1452
MTU: 1492
TCP Window: 64952 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 64952
Recommended RWINs: 63888, 127776, 255552, 511104, 1022208
BDP limit (200ms): 2598kbps (325KBytes/s)
BDP limit (500ms): 1039kbps (130KBytes/s)
MTU Discovery: ON
TTL: 43
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

Rollingstone · Post by **Rollingstone** » Mon Nov 23, 2009 12:59 am

Try the following with TCP Optimizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU - 1492
TTL - 64
Windows Scaling - check
TCP Receive Window - 127776
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
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 - 0
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768

MakaveLLi · Post by **MakaveLLi** » Mon Nov 23, 2009 2:01 am

Thanks for your reply Rollingstone. Here is my analyser results after the value changes. Does it look ok?

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.23.2009 01:58
IP address: 24.205.xx.xx
Client OS: Windows XP

TCP options string: 020405ac0103030101010402
MSS: 1452
MTU: 1492
TCP Window: 127776 (multiple of MSS)
RWIN Scaling: 1 bits (2^1=2)
Unscaled RWIN : 63888
Recommended RWINs: 63888, 127776, 255552, 511104, 1022208
BDP limit (200ms): 5111kbps (639KBytes/s)
BDP limit (500ms): 2044kbps (256KBytes/s)
MTU Discovery: ON
TTL: 43
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

Rollingstone · Post by **Rollingstone** » Mon Nov 23, 2009 7:51 pm

Correct !

MakaveLLi · Post by **MakaveLLi** » Mon Nov 23, 2009 9:42 pm

I was reading elsewhere that the MTU value for cable internet should be 1500.

Any truth to this?

Rollingstone · Post by **Rollingstone** » Mon Nov 23, 2009 10:47 pm

It's true ! Just change MTU to 1500 and TCP WIndow to 128480

MakaveLLi · Post by **MakaveLLi** » Tue Nov 24, 2009 12:14 am

New analyzer test after making the 2 changes above. Looks better?

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.24.2009 00:11
IP address: 24.205.xx.xx
Client OS: Windows XP

TCP options string: 020405b40103030101010402
MSS: 1460
MTU: 1500
TCP Window: 128480 (multiple of MSS)
RWIN Scaling: 1 bits (2^1=2)
Unscaled RWIN : 64240
Recommended RWINs: 64240, 128480, 256960, 513920, 1027840
BDP limit (200ms): 5139kbps (642KBytes/s)
BDP limit (500ms): 2056kbps (257KBytes/s)
MTU Discovery: ON
TTL: 43
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

trogers · Post by **trogers** » Tue Nov 24, 2009 4:04 am

Try the following with TCP Optimizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU - 1500
TTL - 64
Windows Scaling - uncheck
TCP Receive Window - leave blank
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
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

Post a new TCP Analyzer report after rebooting the comp to see if MTU goes up to 1500.

MakaveLLi · Post by **MakaveLLi** » Tue Nov 24, 2009 10:51 am

trogers wrote:Post a new TCP Analyzer report after rebooting the comp to see if MTU goes up to 1500.

Didn't my last TCP Analyzer results show the MTU already @ 1500? Unless I'm seeing and reading something different here.

Also I didn't see the value for "LAN Request Buffer Size" in your settings above.......I assume it's 32768, correct? (or leave it blank?)

Here's my results with the settings you provided. Thanks.
----------------------------------------------------------------
« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.24.2009 11:01
IP address: 24.205.xx.xx
Client OS: Windows XP

TCP options string: 020405b40103030e01010402
MSS: 1460
MTU: 1500
TCP Window: 1073725440 (NOT multiple of MSS)
RWIN Scaling: 14 bits (2^14=16384)
Unscaled RWIN : 65535
Recommended RWINs: 64240, 128480, 256960, 513920, 1027840
BDP limit (200ms): 42949018kbps (5368627KBytes/s)
BDP limit (500ms): 17179607kbps (2147451KBytes/s)
MTU Discovery: ON
TTL: 43
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

MakaveLLi · Post by **MakaveLLi** » Wed Nov 25, 2009 1:21 pm

Trogers....leaving the TCP Receive Window BLANK seems to cause slower loading pages. Did you have a chance to check out the latest TCP analyzer I posted w/ your settings (post #9)?

Also what is the correct settings for these 2:

ToS: DefaultTOSValue: 0 or 80?

Windows Scaling: Checked or Unchecked?

It seems like you and Rollingstone varied on these 2.

Thanks.

p.s. using Charter Cable High Speed Internet 10 Mbps down/2 Mbps up

akbarri · Post by **akbarri** » Wed Nov 25, 2009 1:38 pm

ToS: DefaultTOSValue: 0 or 80?
it's depend on "IP ToS" Result

Windows Scaling: Checked or Unchecked?
it's depend on "RWIN Value",
more than (>=) 65535 "checked",
less then (<) 65535 "unckecked"

TCP Optimizer for ur 10Mbps/2Mbps :
General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU - 1500
TTL - 64
TCP Receive Window - 256960
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - check
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 - blank
ToS: DefaultTOSValue - blank
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768

MakaveLLi · Post by **MakaveLLi** » Wed Nov 25, 2009 3:04 pm

Thanks for your input akbarri. I've received 3 different settings from 3 different members here and I'm unsure which one is recommended for my ISP and speed.

Below is my analyzer with your values. Please tell me if it's correct. Thx

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.25.2009 15:01
IP address: 24.205.xx.xx
Client OS: Windows XP

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: 43
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

akbarri · Post by **akbarri** » Thu Nov 26, 2009 7:44 am

correct, test it @ http://www.speedtest.net
download/upload speed should be near to 10Mbps/2Mbps

MakaveLLi · Post by **MakaveLLi** » Sun Nov 29, 2009 11:35 pm

Just updated my cable modem today to a Motorola SB6120 and I re-ran the analyzer test and it said that the "check bit" is incorrect. Can someone please check it out and tell me what changes in TCPOptimizer I need to make. Thanks.

« SpeedGuide.net TCP Analyzer Results »
Tested on: 11.29.2009 23:31
IP address: 24.205.xx.xx
Client OS: Windows XP

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: 43
Timestamps: OFF
SACKs: ON
IP ToS: 00000011 (3)
Precedence: 000 (routine)
Delay: 0 (normal delay)
Throughput: 0 (normal throughput)
Reliability: 0 (normal reliability)
Cost: 1 (low cost)
Check bit: 1 (incorrect)
DiffServ: CS0 000000 (0) - class 0, default traffic (RFC 2474).

akbarri · Post by **akbarri** » Mon Nov 30, 2009 4:26 am

change this value :
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 0

MakaveLLi · Post by **MakaveLLi** » Tue Dec 01, 2009 1:38 am

Changed those 2 settings. Below is new analyzer report + tracert report.

Does anything else need to be changed?

« SpeedGuide.net TCP Analyzer Results »
Tested on: 12.01.2009 01:37
IP address: 24.205.xx.xx
Client OS: Windows XP

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: 43
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)
--------------------------------------------------

Tracing route to yahoo.com [69.147.114.224]

over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms 192.168.1.1

2 12 ms 14 ms 6 ms 10.81.240.1

3 7 ms 6 ms 6 ms acr01gldlca-gbe-1-19.rvsd.ca.charter.com [96.34.96.126]

4 7 ms 7 ms 8 ms 96-34-96-38.static.unas.ca.charter.com [96.34.96.38]

5 8 ms 8 ms 14 ms bbr01mtpkca-tge-0-0-0-6.mtpk.ca.charter.com [96.34.2.24]

6 12 ms 12 ms 11 ms 66.186.192.5

7 13 ms 11 ms 12 ms exchange-cust1.la1.equinix.net [206.223.123.16]

8 49 ms 46 ms 48 ms so-2-0-0.pat1.dax.yahoo.com [216.115.96.50]

9 46 ms 45 ms 47 ms ae-4.pat2.dax.yahoo.com [216.115.102.139]

10 81 ms 80 ms 80 ms as-0.pat2.dce.yahoo.com [216.115.96.20]

11 150 ms 80 ms 80 ms ae2-p151.msr2.re1.yahoo.com [216.115.108.63]

12 80 ms 80 ms 81 ms te-9-2.bas-a2.re3.yahoo.com [66.196.112.55]

13 79 ms 79 ms 82 ms b1.http://www.vip.re3.yahoo.com [69.147.114.224]

Trace complete.

akbarri · Post by **akbarri** » Tue Dec 01, 2009 7:33 am

MakaveLLi wrote:Changed those 2 settings. Below is new analyzer report + tracert report.

Does anything else need to be changed?

« SpeedGuide.net TCP Analyzer Results »
Tested on: 12.01.2009 01:37
IP address: 24.205.xx.xx
Client OS: Windows XP

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: 43
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)
--------------------------------------------------

Tracing route to yahoo.com [69.147.114.224]

over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms 192.168.1.1

2 12 ms 14 ms 6 ms 10.81.240.1

3 7 ms 6 ms 6 ms acr01gldlca-gbe-1-19.rvsd.ca.charter.com [96.34.96.126]

4 7 ms 7 ms 8 ms 96-34-96-38.static.unas.ca.charter.com [96.34.96.38]

5 8 ms 8 ms 14 ms bbr01mtpkca-tge-0-0-0-6.mtpk.ca.charter.com [96.34.2.24]

6 12 ms 12 ms 11 ms 66.186.192.5

7 13 ms 11 ms 12 ms exchange-cust1.la1.equinix.net [206.223.123.16]

8 49 ms 46 ms 48 ms so-2-0-0.pat1.dax.yahoo.com [216.115.96.50]

9 46 ms 45 ms 47 ms ae-4.pat2.dax.yahoo.com [216.115.102.139]

10 81 ms 80 ms 80 ms as-0.pat2.dce.yahoo.com [216.115.96.20]

11 150 ms 80 ms 80 ms ae2-p151.msr2.re1.yahoo.com [216.115.108.63]

12 80 ms 80 ms 81 ms te-9-2.bas-a2.re3.yahoo.com [66.196.112.55]

13 79 ms 79 ms 82 ms b1.http://www.vip.re3.yahoo.com [69.147.114.224]

Trace complete.

everything is fine