SG Broadband Community

Okay, so I've read all over and I'm just not coming up with anything that suits my connection. My caps are 3500/384 on Comcast Pro, using Win2000 SP3, 551MHz PIII, 512MB RAM, 20GB HDD, etc.. Here are the results of the TCP Optimizer test (FYI, I'm using Lobo's CableNut settings):

Browser/OS = Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.0.3705)

TCP options string = 020405b40103030201010402

MTU = 1500
MTU is fully optimized for broadband.

MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.

Default Receive Window (RWIN) = 256960
RWIN Scaling (RFC1323) = 2 bits
Unscaled Receive Window = 64240
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
513920 (MSS x 44 * scale factor of 8)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 10278.4 kbps (1284.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 4111.36 kbps (513.92 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 50 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

So what can I do to speed this up, if anything?

Thanks.

Originally posted by Hybridmonolith
https://www.speedguide.net/forums/ ... adid=54426

What am I looking for here? These tweaks all appear to be XP related, and I am on Win2K SP3.

Thanks.

Try them, there for W2K and XP

Originally posted by Lobo
Try them, there for W2K and XP

Thank you for the clarification. Will check these out and see what I come up with.

And I'm back. About the only thing I hadn't done yet that was on that page was the system.ini tweak, which I decided to set at 8192. This seemed to help a little bit with loading pages, but I am not certain of this.

Anything else you guys can offer up?

Thanks again.

Boost:

What speeds are you getting anyway? Go here and run 4 - 5 speed tests. Clean out your browser cache before each test. Post the results.


Frank's Windows 95/98 Tips

Originally posted by CaptainSpeleo
Boost:

What speeds are you getting anyway? Go here and run 4 - 5 speed tests. Clean out your browser cache before each test. Post the results.

#1] 1797 down/359 up.
#2] 2885 down/354 up.
#3] 1938 down/323 up.
#4] 2225 down/357 up.

:/

Welcome to Speedguide Boost

Boost! try the following settngs in Cablenut:

DefaultReceiveWindow = 448512
DefaultSendWindow = 49152
DisableAddressSharing = 1
InitialLargeBufferCount = 100
InitialMediumBufferCount = 240
InitialSmallBufferCount = 320
LargeBufferSize = 81920
MaxFastTransmit = 64000
MediumBufferSize = 15040
PriorityBoost = 0
SmallBufferSize = 1280
TransmitWorker = 32
FastSendDatagramThreshold = 4096
EnableFastRouteLookup = 1
EnablePMTUDiscovery = 1
IgnorePushBitsOnReceive = 0
GlobalMaxTcpWindowSize = 64240 or 128480 or 219000
MaxFreeTcbs = 8000
MaxHashTableSize = 16384
MaxNormLookupMemory = 5000000
SackOpts = 1
SynAttackProtect = 1
Tcp1323Opts = 0 (set to 1 if TcpReceiveWindow is 65535 or higher)
TcpLogLevel = 1
TcpMaxDupAcks = 2
TcpMaxHalfOpen = 100
TcpMaxHalfRetried = 80
TcpRecvSegmentSize = 1460
TcpSendSegmentSize = 1460
TcpTimedWaitDelay = 30
TcpUseRFC1122UrgentPointer = 0
TcpWindowSize = 64240 or 128480 or 219000
MaxConnectionsPer1_0Server = 40
MaxConnectionsPerServer = 20
DefaultTTL = 64
DisableUserTOSSetting = 0
TcpMaxDataRetransmissions = 6
DefaultTOSValue = 92

Add the following line to your registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AFD\Parameters

BufferMultiplier - DWORD - hexidecimal value of 400.

Also read the Help & Tips link in my signature and try the other suggestions.

I have same CAPS as you, try settings in help thread below

Originally posted by Boost!
(FYI, I'm using Lobo's CableNut settings):

He is.

Ok, I tried mnosteele's settings, and the results of some speed tests from chi.speakeasy.com are as follows:

2780/363
2938/353
2775/353
2689/361

Seems to be a bit more stable.

Going to try a few other things, and will check back later. Thanks for the help so far!

Now try real download test

Originally posted by Lobo
Now try real download test

From ftp://ftp1.optonline.net/pub/test64 I got 340KB/sec average, when before I was getting 327KB/sec average, so not much difference on that end.

The TCP/IP Analyzer now reads:

TCP options string = 020405b40103030201010402

MTU = 1500
MTU is fully optimized for broadband.

MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.

Default Receive Window (RWIN) = 219000
RWIN Scaling (RFC1323) = 2 bits
Unscaled Receive Window = 54750
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
513920 (MSS x 44 * scale factor of 8)
256960 (MSS x 44 * scale factor of 4)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 8760 kbps (1095 KBytes/s) @ 200ms
Your RcvWindow limits you to: 3504 kbps (438 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 50 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

340KB/sec is 90% of your cap, I don't think you can ask for much more then that

Originally posted by joecool169
I don't think you can ask for much more then that

Never hurts to try.

Thank you for the welcome earlier in the thread; I missed it.

How much does it cost per month for those kinda caps anyway? and is it cable modem?

joecool169

that guy was getting 340 KB/sec and you told him that was 90% of his cap?

340x8=2720 wich isnt even close to 90% of his cap

3150 is 90% of his cap

2720 and 3150 is alot of differance my friend 430 differance


he is at 78% of his caps

not trying to be rude just telling you he should be able to get another 400 or more then he is getting now with the right settings wich is alot its a additonal 50 KB/Sec

On a 3MB download test, hehehehehe

lobo

dont you agree that he should get better then 2700 on a 3500 line?

Heck yes, but he needs to take bigger test

i agree

i like the FTP tests :-)

Then try these:

https://www.speedguide.net/forums/ ... adid=87931

Originally posted by noaht1980
joecool169

that guy was getting 340 KB/sec and you told him that was 90% of his cap?

340x8=2720 wich isnt even close to 90% of his cap

3150 is 90% of his cap

2720 and 3150 is alot of differance my friend 430 differance


he is at 78% of his caps

not trying to be rude just telling you he should be able to get another 400 or more then he is getting now with the right settings wich is alot its a additonal 50 KB/Sec

oops my bad

joecool169


i was just saying that cause i didnt want that guy thinking he was maxing out at 2700 on a 3500 line :-)

yeah silly me I had been calculating that wrong, and I even knew the right way

Need more coffee I guess