Mnosteele52 can you plz give me a hand?

[Sgt_Strider]

Hi, I have a cable internet connection and my isp doesn't list the advertise speed with their internet package. I live in Canada and I tried calling them to ask them for information on the speed of my connection and they said to go to their site and download a dummy file to check my speed. While I was there, I was downloading a file at around 220-250kbit per second and the dude told me that's how fast my connection is. Anyway I'm wondering if you can help me tweak my settings and maybe give me the cablenut settings as well? Btw my isp is Shaw Cables, http://www.shaw.ca . Here are my tcp/ip analyser info:

TCP options string = 020405b401010402010303000101080a367679ba00000000

MTU = 1500
MTU is fully optimized for broadband.

MSS = 1460
Maximum useful data in each packet = 1448, which is less than MSS because of Timestamps, or other TCP/IP options used.

Default Receive Window (RWIN) = 32768
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 32768
For optimum performance, consider changing RWIN to 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: 1310.72 kbps (163.84 KBytes/s) @ 200ms
Your RcvWindow limits you to: 524.288 kbps (65.536 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 58 hops
TTL value is ok.

Timestamps (RFC1323) = ON
Note: Timestamps add 12 bytes to the TCP header of each packet, reducing the space available for useful data.

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

This is what speakeasy is saying for my speed:
Your download speed : 1722816 bps, or 1722 kbps.
A 210.3 KB/sec transfer rate.
Your upload speed : 467180 bps, or 467 kbps.
Seems like broadband .. above the 1mbit barrier!


And I'm using Windows XP Professional. Thx for your help .

[mnosteele52]

OK let's see, Shaw's caps are 3000/384 so use the following settings:

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
MaxFreeTcbs = 8000
MaxHashTableSize = 16384
MaxNormLookupMemory = 5000000
SackOpts = 1
SynAttackProtect = 1
Tcp1323Opts = 0
TcpLogLevel = 1
TcpMaxDupAcks = 2
TcpMaxHalfOpen = 100
TcpMaxHalfRetried = 80
TcpRecvSegmentSize = 1460
TcpSendSegmentSize = 1460
TcpTimedWaitDelay = 30
TcpUseRFC1122UrgentPointer = 0
TcpWindowSize = 64240
MaxConnectionsPer1_0Server = 20
MaxConnectionsPerServer = 10
DefaultTTL = 64
DisableUserTOSSetting = 0
TcpMaxDataRetransmissions = 6
DefaultTOSValue = 92

VERY IMPORTANT TO DO THE FOLLOWING

1. Under your LAN connection - properties - general tab, uninstall all the protocols there that you do not need.

2. Open IE and select tools - internet options - connections - LAN settings, make sure NOTHING there is checked.

3. Make sure you have the latest drivers for your NIC from the manufacturer. Set your NIC duplex mode to 10mb half duplex for Cable, for DSL it is ISP dependent unless you are using a router, if so then set it to 100mb full duplex for both Cable & DSL (the instructions are in my Help & Tips link). If you are using a router make sure you have the latest firmware.

4. Clear your temporary internet files.

5. Power cycle your modem, unplug it for atleast 15 seconds.

6. Download and update then do a scan with SpyBot, anything checked in red is spyware and safe to remove.

7. Make sure you do the faster web page tweak in my Help & Tips link.

[Sgt_Strider]

Thx, I'll try the settings now .