New settings needed for my set-up

MakaveLLi · Post by **MakaveLLi** » Thu May 28, 2009 10:31 pm

Netgear WNR3500 router
Speedstream 4100 DSL modem
AT&T DSL: 1500 up - 300+ down

I just connected to a router and here is my test results below. Please help me optimize my settings for my NEW set-up above. Thanks.

-----------------------------------

« SpeedGuide.net TCP Analyzer Results »
Tested on: 05.28.2009 22:27
IP address: 71.156.xxx.xxx
Client OS: Windows XP

TCP options string: 0204058401010402
MSS: 1412
MTU: 1452
TCP Window: 31944 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 31944
Recommended RWINs: 64952, 129904, 259808, 519616, 1039232
BDP limit (200ms): 1278kbps (160KBytes/s)
BDP limit (500ms): 511kbps (64KBytes/s)
MTU Discovery: ON
TTL: 47
Timestamps: OFF
SACKs: ON
IP ToS: 01000000 (64)
Precedence: 010 (immediate)
Delay: 0 (normal delay)
Throughput: 0 (normal throughput)
Reliability: 0 (normal reliability)
Cost: 0 (normal cost)
Check bit: 0 (correct)
DiffServ: CS2 010000 (16) - class 2 (RFC 2474). Similar forwarding behavior to the ToS Precedence field.

Rollingstone · Post by **Rollingstone** » Fri May 29, 2009 10:53 am

Set your Modem's MTU to 1492, MSS 1452, reboot and post new TCP Analyzer.

MakaveLLi · Post by **MakaveLLi** » Fri May 29, 2009 11:45 am

Rollingstone wrote:Set your Modem's MTU to 1492, MSS 1452, reboot and post new TCP Analyzer.

Hi. When I connect directly to my modem (no router) and run the analyzer test.....my MTU value is 1492 and MSS is 1452.

However when I connect my Netgear router w/ the modem and run the same analyzer test....my MTU value dips to 1452 and MSS to 1412.

When I was connected to my modem directly, I did check the MTU, MSS settings and they were the values you had recommended above.

My guess is that the router is changing them.

Can this be adjusted/corrected somehow?

This is the 1st time I have ever used a router with my connection so I'm kind of lost here.

Thanks for your help.

Rollingstone · Post by **Rollingstone** » Fri May 29, 2009 6:55 pm

Are you running VPN ?

MakaveLLi · Post by **MakaveLLi** » Fri May 29, 2009 9:34 pm

Rollingstone wrote:Are you running VPN ?

Not sure. How do I check this? In the router-login settings?

Rollingstone · Post by **Rollingstone** » Sat May 30, 2009 12:14 am

Download HijackThis and post HijackThis log.

MakaveLLi · Post by **MakaveLLi** » Sat May 30, 2009 3:47 am

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 12:44:03 AM, on 5/30/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\BillP Studios\WinPatrol\winpatrol.exe
C:\Program Files\Process Lasso\processlasso.exe
C:\Program Files\Process Lasso\processgovernor.exe
C:\Program Files\Ad Muncher\AdMunch.exe
C:\Program Files\SRS Labs\Audio Sandbox\SRSSSC.exe
C:\$ISR\0\ISRService.exe
C:\Program Files\Norton Internet Security\Engine\16.5.0.135\ccSvcHst.exe
C:\Program Files\Norton Internet Security\Engine\16.5.0.135\ccSvcHst.exe
C:\Program Files\Internet Download Manager\IEMonitor.exe
C:\WINDOWS\Explorer.EXE
C:\Documents and Settings\MrC\My Documents\Misc\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
O2 - BHO: IDM Helper - {0055C089-8582-441B-A0BF-17B458C2A3A8} - C:\Program Files\Internet Download Manager\IDMIECC.dll
O2 - BHO: Symantec NCO BHO - {602ADB0E-4AFF-4217-8AA1-95DAC4DFA408} - C:\Program Files\Norton Internet Security\Engine\16.5.0.135\coIEPlg.dll
O2 - BHO: Symantec Intrusion Prevention - {6D53EC84-6AAE-4787-AEEE-F4628F01010C} - C:\Program Files\Norton Internet Security\Engine\16.5.0.135\IPSBHO.DLL
O2 - BHO: RoboForm - {724d43a9-0d85-11d4-9908-00400523e39a} - C:\Program Files\Siber Systems\AI RoboForm\roboform.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O3 - Toolbar: Norton Toolbar - {7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} - C:\Program Files\Norton Internet Security\Engine\16.5.0.135\coIEPlg.dll
O3 - Toolbar: &RoboForm - {724d43a0-0d85-11d4-9908-00400523e39a} - C:\Program Files\Siber Systems\AI RoboForm\roboform.dll
O4 - HKLM\..\Run: [ISR_MONITOR] C:\$ISR\$APP\ISRMonitor.exe
O4 - HKLM\..\Run: [WinPatrol] C:\Program Files\BillP Studios\WinPatrol\winpatrol.exe -expressboot
O4 - HKLM\..\Run: [ProcessSupervisorGUI] C:\Program Files\Process Lasso\processlasso.exe
O4 - HKLM\..\Run: [ProcessGovernor] C:\Program Files\Process Lasso\processgovernor.exe
O4 - HKCU\..\Run: [Ad Muncher] "C:\Program Files\Ad Muncher\AdMunch.exe" /bt
O4 - HKCU\..\Run: [SRS Audio Sandbox] "C:\Program Files\SRS Labs\Audio Sandbox\SRSSSC.exe" /hideme
O8 - Extra context menu item: Block frame with Ad Muncher - http://www.admuncher.com/request_will_b ... u_ie_frame
O8 - Extra context menu item: Block image with Ad Muncher - http://www.admuncher.com/request_will_b ... u_ie_image
O8 - Extra context menu item: Block link with Ad Muncher - http://www.admuncher.com/request_will_b ... nu_ie_link
O8 - Extra context menu item: Don't filter page with Ad Muncher - http://www.admuncher.com/request_will_b ... ie_exclude
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Report page to the Ad Muncher developers - http://www.admuncher.com/request_will_b ... _ie_report
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O18 - Protocol: symres - {AA1061FE-6C41-421F-9344-69640C9732AB} - C:\Program Files\Norton Internet Security\Engine\16.5.0.135\coIEPlg.dll
O23 - Service: FirstDefense-ISR Service (ISRService) - Raxco Software, Inc. - C:\$ISR\0\ISRService.exe
O23 - Service: Norton Internet Security - Symantec Corporation - C:\Program Files\Norton Internet Security\Engine\16.5.0.135\ccSvcHst.exe
O23 - Service: PDAgent - Raxco Software, Inc. - C:\Program Files\Raxco\PerfectDisk10\PDAgent.exe
O23 - Service: PDEngine - Raxco Software, Inc. - C:\Program Files\Raxco\PerfectDisk10\PDEngine.exe

--
End of file - 5185 bytes

Rollingstone · Post by **Rollingstone** » Sat May 30, 2009 4:11 am

Try the following with TCP Optimizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU - 1452
TTL - 64
Windows Scaling - uncheck
TCP Receive Window - 33888
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
LAN Request Buffer Size - 32768

MakaveLLi · Post by **MakaveLLi** » Sat May 30, 2009 10:48 am

« SpeedGuide.net TCP Analyzer Results »
Tested on: 05.30.2009 10:46
IP address: 71.143.xxx.x
Client OS: Windows XP

TCP options string: 0204058401010402
MSS: 1412
MTU: 1452
TCP Window: 33888 (multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 33888
Recommended RWINs: 64952, 129904, 259808, 519616, 1039232
BDP limit (200ms): 1356kbps (169KBytes/s)
BDP limit (500ms): 542kbps (68KBytes/s)
MTU Discovery: ON
TTL: 48
Timestamps: OFF
SACKs: ON
IP ToS: 01000000 (64)
Precedence: 010 (immediate)
Delay: 0 (normal delay)
Throughput: 0 (normal throughput)
Reliability: 0 (normal reliability)
Cost: 0 (normal cost)
Check bit: 0 (correct)
DiffServ: CS2 010000 (16) - class 2 (RFC 2474). Similar forwarding behavior to the ToS Precedence field.

Rollingstone · Post by **Rollingstone** » Sat May 30, 2009 9:02 pm

TCP Settings are correct ! How's the speed ?

MakaveLLi · Post by **MakaveLLi** » Sat May 30, 2009 9:19 pm

Rollingstone wrote:TCP Settings are correct ! How's the speed ?

Page rendering seems a little better than before, but maybe it's the "placebo effect" on my end, LOL.

Is this a known issue with routers.....where the MTU value is set @ 1452 (even though the modem + router MTU value settings are @ 1492)??

Also any other adjustments with the TCPOptimizer or are these settings the best they can get?

Rollingstone · Post by **Rollingstone** » Sat May 30, 2009 9:57 pm

where the MTU value is set @ 1452 (even though the modem + router MTU value settings are @ 1492)??

Check your ISP's website to see if there is any updated firmware for your router/modem.

MakaveLLi · Post by **MakaveLLi** » Sun May 31, 2009 12:35 am

Rollingstone wrote:Check your ISP's website to see if there is any updated firmware for your router/modem.

Modem firmware already updated to the latest.

Rollingstone · Post by **Rollingstone** » Sun May 31, 2009 1:03 am

Netgear WNR3500 router
Speedstream 4100 DSL modem

My guess is that MTU is limited by your modem & router !

MakaveLLi · Post by **MakaveLLi** » Mon Jun 01, 2009 10:08 pm

I just upgraded my DSL from 1.5 Mb/s to 3.0 Mb/s (to be completed in a couple of days).

I'm assuming that I'm going to need NEW TCPOtimizer settings. However when I run the analyzer test again.....should I do it with my current configuration (modem + router) or just connected directly to the modem (NO router)?

Rollingstone · Post by **Rollingstone** » Mon Jun 01, 2009 11:57 pm

Connect directly to the modem and post TCP Analyzer report.

MakaveLLi · Post by **MakaveLLi** » Wed Jun 03, 2009 12:31 am

Rollingstone wrote:My guess is that MTU is limited by your modem & router !

Netgear support told me that the 40 byte difference is probably header data.

Also when I run the analyzer tests, I get the following message under MTU:

"MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput. If you are using a router, it could be limiting your MTU regardless of Registry settings

Rollingstone · Post by **Rollingstone** » Thu Jun 04, 2009 8:22 am

I just upgraded my DSL from 1.5 Mb/s to 3.0 Mb/s (to be completed in a couple of days).

So you can double the RWIN to 64952.