Download speed problem

silkman · Post by **silkman** » Fri Aug 23, 2002 11:59 pm

Whenever i start download something, i usually start off with high speed. Something like 300-500kB/sec. But after a couple second later the speed slowly dropped down to 60-90KB/sec. Anyone know what setting in the registry tweak causes this? I'm using mnosteele52 tweak setting in cablenut. Rwin is set at 256960.

Spec are
P4 2.13GHZ
1GB of ram
Geforce 4 TI4200
winxp pro
and this comp is connected to a linksys router.

earthmofo · Post by **earthmofo** » Sat Aug 24, 2002 1:40 am

It's normal for the beginning of a download to start high then drop. The reason for this is when you select to download a file it takes a couple of seconds for you to choose the location (folder) it will be stored in. While that happens the file has already started to download and the incomming packets are stored in a buffer untill the location is chossen. The data is then moved from the buffer to the choosen location. The MS Download utility reports that speed for the beginning of the download.

What are your service caps compaired to your download speed?

mccoffee · Post by **mccoffee** » Sat Aug 24, 2002 1:42 am

try this goto ur router page 192.168.1.1 address is depending on setup make sure goto advanced and make sure you have block wan request disabled and mtu 1500 give that a shot if is set to that already or if that did or didn't help leave it on that setting reply back with isp and or capp rate to give other values then 25690

silkman · Post by **silkman** » Sat Aug 24, 2002 2:08 am

Thanks for the reply. I have my block wan request enable before but now is disable thanks for that tips. Althought it didn't help much but i'm sure is a good tweak

. I really have no idea what my cap is. Using shaw@home in the vancouver, BC area.

mccoffee · Post by **mccoffee** » Sat Aug 24, 2002 2:24 am

ok to get cap rate try this click speedtest select the state of new york look for a speed test called speakeasy take it about 3-5 times and post the resaults we can get a general idea what capp rate is.

i think there capp rate is 5000/1000 up i think don't qutue me.

silkman · Post by **silkman** » Sat Aug 24, 2002 2:50 am

k did 4 test in total and here's the result. Test 1-3 are pretty much the same all are around the 107X-108Xkbps range or 130ishKB/sec. Seem kinda low no?

2002-08-24 02:46:21 EST: 1088 / 397
Your download speed : 1088031 bps, or 1088 kbps.
A 132.8 KB/sec transfer rate.
Your upload speed : 397022 bps, or 397 kbps.
Seems like broadband .. above the 1mbit barrier!

mccoffee · Post by **mccoffee** » Sat Aug 24, 2002 3:04 am

try thease rwins 51100,58400,64240,116800 try them one at a time and rember if rwin is higher then 65535 u have to set tcp opts with a check in the box in sg optimizer,or 1 if u are using cablenut reeboot after changes i gave you a bunch of low numbers due to the fact I think I know what ur capps are but i'm not 100% sure

also take speed test like i shown or told u earlier post back with resualts or comments questions whatever.

silkman · Post by **silkman** » Sat Aug 24, 2002 3:32 am

k tried all of those rwin setting and it err... make it worse then before lol. Getting speed from 86KB-105KB/sec hehe

mccoffee · Post by **mccoffee** » Sat Aug 24, 2002 3:35 pm

256960 , 262800, 280320, 297840, 303680 here u go

mnosteele52 · Post by **mnosteele52** » Sat Aug 24, 2002 6:24 pm

According to Shaws site your caps are 3000/384, if that is the case try the following settings in Cablenut:

DefaultReceiveWindow = 384000
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
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
MaxConnectionsPer1_0Server = 20
MaxConnectionsPerServer = 10
DefaultTTL = 64
DisableUserTOSSetting = 0
TcpMaxDataRetransmissions = 6
DefaultTOSValue = 92

Something I have read about Shaw Cable is that their internet speed is very unreliable, it fluctuates form person to person in the same area.... I don't know if it's true, just something I read.

P.S. Also set your NIC duplex mode to 100mb full duplex mode and try power cycling your modem.