Why I am so slow on cable??

[DigitalBlasphmy]

Recently I moved from a location which I used DSL now have no choice but to use a cable connection. Since it has been connected I have had very slow speeds. DSL would load up pages very fast with little or no delay and all the speed tests I took would get no less that at least 500-700kbps. Now I finished taking 6 different bandwidth tests and highest was 120kbps. I have the highest service available which claimed to be 1536/512 kbps. Something has to be incorrect here because it seems at times I am going slower than I used to on a 56k connection. Maybe I have it hooked up incorrectly or something in my configuration is awry. I looked at a few other posts and here is what I got from the analyzer.

TCP properties for IP = xx.xxx.xx.xxx()
Browser/OS = Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; Q312461)
Note: Read the FAQ if the above is not your IP address.

TCP options string = 020405b40103030301010402

MTU = 1500
MTU is fully optimized for broadband.

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

Default Receive Window (RWIN) = 513920
RWIN Scaling (RFC1323) = 3 bits
Unscaled Receive Window = 64240
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
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: 20556.8 kbps (2569.6 KBytes/s) @ 200ms
Your RcvWindow limits you to: 8222.72 kbps (1027.84 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 117 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000



Please help this slow speed is getting old and paying as much as I do for this god-awful connection shouldn't be. The ISP is the only one I can go through and they offer little or no support.

[MadDoctor]

The tweak looks good. Have you called your ISP about your speeds? Maybe they'll roll a truck out to your house.

[DigitalBlasphmy]

I did call them up quite a few times and they finally sent someone over. He took his testing stuff and said the problem was corrected. He went to a site with a 100mb file, looked like a company site and I figure it was here in Germany because of the language being all in german. It was going at like 130-150KBps on the 100 mb file. So I know that was ok. But why then such slow internet pages? All the tests site are slow, all the web pages I view are slow, but most of the downloads a fairly fast.

[mnosteele52]

The reason web pages load so slow is because your RWIN is too high, since you are on XP download Cablenut from my signature and try the following settings:

DefaultReceiveWindow = 192512
DefaultSendWindow = 65536
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 = 37960 or 52560 or 64240
MaxFreeTcbs = 8000
MaxHashTableSize = 16384
MaxNormLookupMemory = 5000000
SackOpts = 1
SynAttackProtect = 1
Tcp1323Opts = 0
TcpLogLevel = 1
TcpMaxDupAcks = 2
TcpMaxHalfOpen = 100
TcpMaxHalfRetried = 80
TcpRecvSegmentSize = 1440
TcpSendSegmentSize = 1440
TcpTimedWaitDelay = 30
TcpUseRFC1122UrgentPointer = 0
TcpWindowSize = 37960 or 52560 or 64240
MaxConnectionsPer1_0Server = 20
MaxConnectionsPerServer = 10
DefaultTTL = 64
DisableUserTOSSetting = 0
TcpMaxDataRetransmissions = 6
DefaultTOSValue = 92

Also do the following:

1. Under your LAN connection - properties - general tab, uninstall all the protocols there except TCP/IP Internet Protocol.

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 (http://forums.speedguide.net/showthread.php?s=&threadid=85224)).

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 Ad Aware (http://www.lavasoftusa.com).

Let me know how thngs work after all of this and we can go from there if there is still a problem.



:) :D

[MadDoctor]

Originally posted by mnosteele52
The reason web pages load so slow is because your RWIN is too high. Sounds like something to try for sure.

[DigitalBlasphmy]

Well there does seem to be an improvement. The pages load up faster but the tests still say I am running slow. Maybe they are a bit inaccurate because of my location? I tried to that I remember. One was on the mcafee site and the other was the dsl reports. I am sure the first one I mentioned isn't quite correct because it clocked me at 1,000kbps or so then the next test and few there after we hitting 250kbps. The dslreports is always around the same at 200kbps. I go to the local site my isp uses to check speeds and I can easily download the 100mb file at a rate of 150KBps. I think the biggest improvement was when I changed to the 10baseT. Any other suggestions as to how to get one of them damned speed tests going correctly?