SG Broadband Community

Good news on this 32768 RWIN limit in proxomtron which Tony and many others were reporting who use proxomitron on a Windows XP with SP2 home or pro machine.

z12 (Mike) verified the 32768 rwin buffer was hard coded in proxomitron

you can follow further updates on this here:

http://kyeu.info ...

What do you guys not understand? A proxy sits between you and the internet to block direct access to your pc thereby negating any tweaks you have done. The TCP/IP Analyzer cannot read your actual RWIN when using a proxy.

mnosteele52,

We are not ignoring your answer.

We understood the thought ...

I Found Kye-U...

If you are not ready to give up and still want help with this proxo issue go here:

http://kyeu.hostingzero.com/proxo/forum ... 646d31d3d1

because what is sent out is a different thing and the speedguide analyzer doesn't look at registry settings, it looks what is sent out via TCP/IP

if you can write a header filter for proxo which matches on anything other than the correct RWIN and if matched sends out the correct RWIN maybe this ...

So I think that the problem is inside the proxomitron.exe, which doesn't work 100% with my system configuration and sends that low RWIN in the tcp/ip headers to other servers.

if it is a real slow down the choice is obvious, if perceived (i.e. not real) it wouldn't bother me if I had the issue ...

TT,

If you want I can post the .txt version of Kye-U's filter set here, or PM me and I can send you the file for Kye-U.Browser.Security.Pack.v4.44.cfg

You are probably using the latest version of Proxo 4.5 if not go here:

http://castlecops.com/downloads-cat-19.html

I am using 4.3 without issue ...

I'm using Proxomitron with IE 6.0.
The problem is that it sets my RWIN to 32768 (according to the speedguide analyzer) regardless what is set up in the registry and therefore downloads from distant servers are very slow.

As soon as I deactivate the local Proxy (localhost:8080) in the IE options I ...

Killfly,

Hope I'm not stepping on Dr. Tweak's toes by offering this:

1) If you are using TCP Optimizer 2.02 latest and greatest:

http://www.speedguide.net/files/TCPOptimizer.exe

it should get you pretty close.

When I enter your data into the latest version it gives 128480 or 44 x your MSS ...

All changes look good Phil.

One minor thing I noticed was a check mark in TCP1323 options for scaling when latency of 100ms is selected for a 5Mps connection with RWIN optimal of 62780.

I do not remember seeing this issue before in RC1.

Of course it is grayed out since it is optimal so not an ...

List of updates and fixes in the 2.0.2 RC1 version (from version 2.0.2 beta):
1) Fixed the optimal RWIN calculation for Windows 95 to use the same algorithm as newer Windows versions.
2) Fixed the advanced settings "Host Resolution Priority" to display the correct numbers in Windows 95.
3 ...

For a 5 Mbit connection with 500 ms max latency it is the lowest valid RWIN value that would allow for full throughput. The value is based on the bandwidth*delay product, directly by the book... If you want to base everything on a lower latency, there is an option in the preferences.

I don't see ...

Please someone test this for the Windows 95 Tcp1323 addition as per the requests from version 2.0.1 ... Also, if there are no other bugs found this might become the final 2.0.2 release soon.


for win95...

My ability to test is limited in that I do not wish to change my current settings by making ...

We've released an updated version of the TCP Optimizer 2, including bug fixes and couple of user suggested changes. It can be downloaded from here:


TCP Optimizer v 2.0.1

... We've fixed all known bugs, including the Windows 9x problem under "Optimal settings" with the final 2.0.0 version ...

:D agree
Optimizer 2.01 (was not checked with previous versions)
cannot see Windows 95 B (OSR2) (build 4.0.1111)
registry settings for :
System\CurrentControlSet\Services\VxD\MSTCP\Tcp1323Opts
even if mentioned was added manually


Thanks for corroborating & reporting as aberration for TCP Opt ...

from post#23...

good to know for others who may be lurking or traveling dwn this path that some systems like mine don't completely work correctly w/ TCP Optimizer version 2.0.1 ...

also good that both programs complement and make the tweaking easier...

when I get done I will try and edit ...

looking like my rwin value will be 1 of the following:

62780 (43 x mss)
61320 (42 x mss)
59860 (41 x mss)

anything above 62780 causes packet retransmission or loss depending on how high I go. I just did a ping test at dslreports which points me to a slightly higher rwin @ 67160 (46 x mss), so I ...

:D Please find a few links concerning on
w95 upg, tweaking etc

IMVHO in yours case problem is in w95
but also in experiments methodology
so please explain yours actual
w95] tab can be used
in this case instead of regedit.

Gr8 links thnks. Dun1.3-->1.4 confirmed my findings of not needing the ...

did you see the custom setting on the bottom left of the optimizer you need to click that to use the menual changes such as sciling and rwin i think that's where the confusion was the whole time i could be wrong

yup, it never worked as I said in post #3... your 1st instruct. step was to select ...

[quote="5MpstweakR"]
Has anyone ever gotten win95 & tcpO to work perfectly - i doubt it

but sure feels good @ close to 5Mbps

maybe if I do the dun1.4 upgrade I'll hit 5Mbps ]

I decided to give DrTCP a whirl and am now able to scale on & off and change rwin values as I wish (something I could not ...

PS many my valuable links to w95 tweaks are actually death

my opinion about internet in w95 etc on old PC can found on thread
https://www.speedguide.net/forums/viewtopic.php?t=s=&postid=1130760#post1130760
see also 'my 2003 award' hehehe


IMO internet and ms ofice97 as minimum + tweaking: OS ...

YeOldeStonecat wrote:

anyone with any history of doing MS upgrades knows to weigh the + agin the -

8)

mccoffee,

thank you for the win95 link: http://www.hakanozerdem.biz/registr.../detail-745.htm

======

YeOldeStonecat,

thank you for that additional info regarding dun upgrade (I have dun1.3 but not the dun 1.4 upgrade) One question - If I am not using dialup why do I need the dun 1.4 upgrade ...

I already read all that before I posted this new thread.

can someone answer my question...

The question is for Win95 is it ok (no known negative issues) to add the folder \Tcpip and the proper values to Control RFC 1323

The link provided by mccoffee:

http://www.winguides.com/registry/display ...

it's tcpopts1323 in the regirtry if that value is set to one scaling is on http://www.winguides.com/registry/display.php/896

As I mentioned earlier I do not have this registry entry.

Are you suggesting I create this?

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip

Under my \Services ...

If you didn't have scailing you would've have rwin as 513920 which is odd since that requires scailing in order to work also if you noticed my reply i said try 128480 with scailing did you reboot after changes???

The dup acks are fine

good point on scaling...

I noticed, but if scaling is ...

http://www.speedguide.net/files/W95ws2setup.exe download this patch it should fix the 65536 problem with 95 i can't confirm or deny it why i haven't tested it on a 95 machine before to be honest with you but since i know it works in win98 in theory you shouldn't have any problems doing that tweak ...

mccoffee, et al

Thanks for your reply - a few Questions

lower your rwin it's kinda high

Try thease in the sg optmizer below me to download and install

check - custom settings
network adapter selection -
check modify all adapters
maxmtu 1500
TTL - 64
TCP Receive Window 128480
MTU Discovery ...

Long story short see my post #30 if you are on an old system/OS and having problems with TCP Optimizer, RWin and scaling...

http://forums.speedguide.net/showpost.php?p=1653688&postcount=30

Hope it Helps ;)

as Andrzej noted http://forums.speedguide.net/showpost.php?p=1655386&postcount=10 the ...