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KEiGHT

KEiGHT... There are 4 Registry entries made actually, have you looked at the other two ? There are two for MaxConnectionsPerServer and two for MaxConnectionsPer1_0Server. We opted to add both "explorer.exe" and "iexplore.exe" (to cover those entries being set by other programs), hence both entries ...

KEiGHT

http://vvcap.net/db/ySqFI-U8VlMA_7gcLRwr.htp

look careful , the same mistakes as in 3.0.8 , even worst !

KEiGHT

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\AFD\Parameters]
"DefaultReceiveWindow"=dword:00080000
"DefaultSendWindow"=dword:00080000
"DynamicSendBufferDisable"=dword:00000000

DynamicSendBufferDisable must be added to work because this parameter ...

KEiGHT

http://192.168.100.1/ or http://192.168.1.100/ ?
Are you sure your country is listed correctly in router? check that too !

KEiGHT

Another BUG in TCP Optimizer !

The program saves NonBestEfforLimit instead of NonBestEffortLimit for Windows 7 x64

missing a letter, T here^

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Psched]
"NonBestEffortLimit"=dword:00000000

KEiGHT

http://support.microsoft.com/kb/2780879 download this hotfix first then restart PC
At search, type cmd and right click > run as administrator then copy/paste this : netsh int tcp set heuristics wsh=enabled forcews=enabled
Press enter and restart !

Good Luck !

KEiGHT

KEiGHT

In red is wrong interpretation in windows 7 of SynAttackProtect

SynAttackProtect

This undocumented for Windows 7 setting provides protection against SYN denial of service (DoS) attacks. When enabled, connections timeout sooner if SYN attack is detected. When set at 1, TCPMaxDataRetransmissions ...

KEiGHT

that's because of your RWIN autotuninglevel = disabled ! dld untouched win 7 from the site mentioned above !

KEiGHT

In that case, my advise is to dld a fresh copy of Windows 7 Ultimate from digital media, untouched ! maybe your windows has an issue with autotuninglevel...

KEiGHT

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Afd\Parameters]
DefaultReceiveWindow = 1024000
DefaultSendWindow = 1024000

set it to decimal

KEiGHT

Open Command Prompt(cmd.exe) with Run As Administrator (meaning right click and choose Run As Administrator)

KEiGHT

Hi there,

Open Command Prompt with Run As Administrator (meaning right click and choose Run As...)
And copy/paste these commands one by one and press ENTER until you see OK !

netsh int tcp set global autotuninglevel=restricted
netsh int tcp set heuristics wsh=disabled
netsh int tcp set global ...

KEiGHT

256960 will be your maximum RWIN if you set highlyrestricted
RWIN Scaling (RFC1323) = 2 bits (scale factor: 2^2 = 4 * 44 * MSS(1460)= 256960)

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile]
"SystemResponsiveness"=dword:00000014

KEiGHT

Hello there,

1) = Yes
2) = Yes/No , recommended No
3) = Yes
4) = No (depending of your Line, in your case is better to set to highlyrestricted )
after setting autotune level to highlyrestricted 256960 (2-14 Mbit lines, depending on latency. MSS * 44 * 2^2)
256960 <= your best RWIN for 6Mbps line ...

KEiGHT

Verify if your router has a specific Country to set, set to your country if he has setting like that !

KEiGHT

Verify in Router to have selected your country !

KEiGHT

netdma is not supported in windows 8 and later 10!

KEiGHT

netsh int tcp set global autotuninglevel=highlyrestricted
netsh int tcp set heuristics wsh=disabled
netsh int tcp set global congestionprovider=ctcp

KEiGHT

netsh int tcp set global autotuninglevel=normal

KEiGHT

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Psched]
"NonBestEffortLimit"=dword:00000000

KEiGHT

Example: netsh int ipv4 set subinterface "Local Area Connection" mtu=1432 store=persistent

KEiGHT

TCP Window: 262144 (NOT multiple of MSS) is YOUR DEFAULT RWIN
lower from 2 to 2 bytes your MTU until you see ; TCP Window: ***** (Multiple of MSS)

KEiGHT

I was regarding strictly to TcpAckFrequency and Nagle's effect !

KEiGHT

try this !

lower your MTU by 2 bytes until your RWIN is a multiple of MSS => TCP Window: 262144 (NOT multiple of MSS)

Example: netsh int ipv4 set subinterface "Local Area Connection" mtu=1432 store=persistent

then add these lines too (Run cmd.exe => right click and Run As Administrator )

netsh ...

KEiGHT

yeah right, the registry of win7 and win8 are on default, not optimized, cuz Microsoft has nothing to do but to verify all PC's and networks in the world right ?
some machines needs to be corrected on network environments.

End of discussion !

KEiGHT

That's what I am talking too !

after many tests, nothing is useful with 7 and 8, 8.1 , just Placebo effect ! We strongly hope that Windows 9 will be the best ant sequel of 7 not 8 !

KEiGHT

Leatrix will install TcpAckFrequency=1 and some other registry unknown so far but has uninstall too ! If you ask RaisinCain, he will tell you to do nothing but to be health and proud of your nation I guess !

KEiGHT

netsh interface ip add dns name="Local Area Connection" addr=208.67.222.222 index=1
netsh interface ip add dns name="Local Area Connection" addr=208.67.220.220 index=2

KEiGHT

Robert Headley wrote:I thought for sure I had disabled QoS on the network adapter before...

Code: Select all

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Psched]
"NonBestEffortLimit"=dword:00000000

KEiGHT

TCPNoDelay has nothing to do if you don't have installed MSMQ ! Has nothing to interfere with games , moreover TcpAckFrequency will flood your environment if you set it to whatever value !

KEiGHT

Nagle's Algorithm can't be disabled in Windows Vista/7/8! Only on servers !

none of these works;

TcpAckFrequency=1
TCPNoDelay=1
TcpDelAckTicks=0

Only PLACEBO effect !

KEiGHT

open command prompt elevated (Run As Administrator)

add these:

netsh int ipv4 set subinterface "Local Area Connection" mtu=1472 store=persistent

netsh int ipv4 set subinterface "Wireless Network Connection" mtu=1472 store=persistent

HIT ENTER after each one added !

Another formula you should ...

KEiGHT

NETSH , one by one if you add them in cmd.exe, if you create a batch file, all will be added automatically

KEiGHT

Set your MTU on Router 1472 test again those from up there then apply again results here!

KEiGHT

that's good enough !

KEiGHT

netsh interface tcp set global initialRto=1000
netsh interface tcp set global nonsackrttresiliency=enabled

KEiGHT

Hmm regarding your configuration is recommended to have a PC with at least 8 GB DRAM (DDR3), Processor with at least 3 Ghz speed core 2 duo minimum (Quad core recommended)

I can not guarantee that your ISP will provide the guaranteed speed of 200 Mbps but up to... > 200 Mbps , RIGHT ?
because you ...

KEiGHT

So, the congestion was ;) maxim possible is 25 and you have 18.30 , I think is a good ratio !

so , when you install again windows 7 copy these into a text file and save it as .bat and run it as admin ! put it in a safe place D or E!

@echo off

netsh int ipv4 set subinterface "Local Area ...

KEiGHT

try even with ECN Capability

netsh int tcp set global ecncapability=enabled

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Parameters of Ancillary Function Driver (AFD) for Windows 7

SynAttackProtect is Enabled in Windows 7 by Default