Need some help

[vagarcia74]

Windows XP SP2

Comcast

Advertised speeds 4000/384

Moterola SB512 Cable Modem

Linksys Wireless-G 2.4 GHz Broadband router

:::.. Download Stats ..:::

Connection is:: 394 Kbps about 0.4 Mbps (tested with 748 KB)

Download Speed is:: 48 KB/s

Tested From:: http://www.testmy.net/

Test Time:: Fri Feb 11 2005 08:34:19 GMT-0600 (Central Standard Time)

Bottom Line:: 7X faster than 56K 1MB download in 21.33 sec

Validation Link:: https://testmy.net/id-WXQ46SBNY

::.. Upload Stats ..:::

Connection is:: 239 Kbps about 0.2 Mbps (tested with 97 KB)

Upload Speed is:: 29 KB/s

Tested From:: http://www.testmy.net/

Test Time:: Fri Feb 11 2005 08:33:08 GMT-0600 (Central Standard Time)

Bottom Line:: 4X faster than 56K 1MB upload in 35.31 sec

Validation Link:: https://testmy.net/id-LB9UCV5ZM

:::.. Download Stats ..:::

Connection is:: 500 Kbps about 0.5 Mbps (tested with 2992 KB)

Download Speed is:: 61 KB/s

Tested From:: http://www.testmy.net/

Test Time:: Fri Feb 11 2005 08:42:41 GMT-0600 (Central Standard Time)

Bottom Line:: 9X faster than 56K 1MB download in 16.79 sec

Validation Link:: https://testmy.net/id-7HA3T1PY0

::.. Upload Stats ..:::

Connection is:: 217 Kbps about 0.2 Mbps (tested with 2992 KB)

Upload Speed is:: 27 KB/s

Tested From:: http://www.testmy.net/

Test Time:: Fri Feb 11 2005 08:54:35 GMT-0600 (Central Standard Time)

Bottom Line:: 4X faster than 56K 1MB upload in 37.93 sec

Validation Link:: https://testmy.net/id-E92MOJA5N

[VanBuren]

hey vagarcia74 and welcome to the forum

go to start-run type command and hit enter, type pathping testmy.net and hit enter, right click copy all and paste it in your post.

also run this test http://www.dslreports.com/tweaks

when you see result, copy the URL adress and paste it here so we can see it

VanBuren

[vagarcia74]

Microsoft® Windows DOS

©Copyright Microsoft Corp 1990-2001.

C:DOCUME~1OWNER~1.VIC>pathping testmy.net

Tracing route to testmy.net [67.19.36.6]

over a maximum of 30 hops:

  0  victor-62e7766e.attbi.com [192.168.1.100]

  1    *        *        *

Computing statistics for 25 seconds...

            Source to Here  This Node/Link

Hop  RTT    Lost/Sent = Pct  Lost/Sent = Pct  Address

  0                                          victor-62e7766e.attbi.com [192.168

.1.100]

                              100/ 100 =100%  |

  1  ---    100/ 100 =100%    0/ 100 =  0%  victor-62e7766e [0.0.0.0]

Trace complete.

C:DOCUME~1OWNER~1.VIC>

http://ttester.broadbandreports.com/tweak/block:176f8be?service=cable&speed=4000&os=winXP&via=normal

I'm looking at my network adaptor, which is broadcom  440x10/100  the drive is dated  6/30/2003. I found some that seem to be  updates, but still can't figure out which one is the one I should use.

[VanBuren]

http://www.broadcom.com/drivers/downloaddrivers.php

i downloaded the driver, and attach it here

click on " winXP-4.28"

unzip it to a new folder

and let windows search in that folder when its looking for updated drivers.

VanBuren

[vagarcia74]

Thanks for that bit of help   Unfortunately it didn't help any.  Any other suggestions?

[VanBuren]

Thanks for that bit of help   Unfortunately it didn't help any.  Any other suggestions?

so you loaded the new driver?

sign up here and make a line quality test http://www.dslreports.com/tools

its free

"Line Packet Loss Testing

Packet loss tests on your line, including identification of any problem routers en-route to you.."

when you see result, copy whole URL adress and paste it here so we can see it

VanBuren

[vagarcia74]

Here are the results.

http://www.dslreports.com/quality/nil/1651326

[rethompson808]

Looking at your Tweak Test results your RWIN is a mess.

If you go to SpeedGuide.net they have a wonderful TCP/IP analyzer.

[VanBuren]

Here are the results.

http://www.dslreports.com/quality/nil/1651326

try powercycle your modem, leave it off for 30 seconds also if you have a router, bypass it and connect directly to the modem, check speed again.

if speed is still slow, email this link to your ISP and let them fix the loss

VanBuren

[VanBuren]

Looking at your Tweak Test results your RWIN is a mess.

If you go to SpeedGuide.net they have a wonderful TCP/IP analyzer.  https://www.speedguide.net/analyzer.php

i would start with the lowest one that it recomends and go up from there until you find the best one. Once you get that worked out some of the other issues may take care of themselves.

You can change the RWIN settings with DRTCP ... there is a link to it on the Tweak test results page.

Good Luck.

the RWIN is in range for a Win XP SP2 tweaked system with a 4 Mbps cap

Receive Window (RWIN): 448512

the analyzer read DefaultReceiveWindow in SP2 and not TcpWindowSize like before

quote from http://www.dslnuts.com/2kxp.shtml

"

1. DefaultReceiveWindow - The number of receive bytes that AFD buffers on a connection before imposing flow control. For some applications, a larger value here gives slightly better performance at the expense of increased resource utilization.

Value Type: REG_DWORD

Default: 4096/8192/8192

32. TcpWindowSize - This parameter determines the maximum TCP receive window size offered by the system. The receive window specifies the number of bytes a sender may transmit without receiving an acknowledgment. In general, larger receive windows will improve performance over high (delay * bandwidth ) networks. For highest efficiency, the receive window should be an even multiple of the TCP Maximum Segment Size (MSS).

Value Type: REG_DWORD

[rethompson808]

Is there a CCS for 6000 down and 768 up.

[VanBuren]

Is there a CSS for 6000 down and 768 up.

yea i attach it here

VanBuren

[rethompson808]

Thanks.

Now all i need is to upgrade my router.  You wouldn't happen to have an extra 802.11G wireless router lying around would ya. 

[VanBuren]

Thanks.

Now all i need is to upgrade my router.  You wouldn't happen to have an extra 802.11G wireless router lying around would ya. 

no problem, i could need a router myself so if i had one it wouldnt lying around 

VanBuren

[vagarcia74]

try powercycle your modem, leave it off for 30 seconds also if you have a router, bypass it and connect directly to the modem, check speed again.

if speed is still slow, email this link to your ISP and let them fix the loss

VanBuren

I powered down the modem and disconnected it from the router and  the speed  has picked up

:::.. Download Stats ..:::

Connection is:: 1149 Kbps about 1.1 Mbps (tested with 12160 KB)

Download Speed is:: 140 KB/s

Tested From:: http://www.testmy.net/

Test Time:: Fri Feb 11 2005 13:15:34 GMT-0600 (Central Standard Time)

Bottom Line:: 21X faster than 56K 1MB download in 7.31 sec

Validation Link:: https://testmy.net/id-UGKDF786W

but that's still down a great deal from where it should be,.

[VanBuren]

I powered down the modem and disconnected it from the router and  the speed  has picked up

:::.. Download Stats ..:::

Connection is:: 1149 Kbps about 1.1 Mbps (tested with 12160 KB)

Download Speed is:: 140 KB/s

Tested From:: http://www.testmy.net/

Test Time:: Fri Feb 11 2005 13:15:34 GMT-0600 (Central Standard Time)

Bottom Line:: 21X faster than 56K 1MB download in 7.31 sec

Validation Link:: https://testmy.net/id-UGKDF786W

but that's still down a great deal from where it should be,.

do a new linequality test now, without router

VanBuren

[vagarcia74]

http://www.dslreports.com/quality/nil/1651501

[VanBuren]

http://www.dslreports.com/quality/nil/1651501

dern your not pingable without router, so we cant see the loss against your pc.

the speed should be alot more without router, i suggest you test with another pc if you have one avalible, and if you still get very low speed, email your ISP and attach those linequality tests.

good luck

VanBuren

[vagarcia74]

already contacted them. they had me reun some DL tests, and the speed just kept droping. They're sending a tech over this weekend. But thanks for all the help.

[VanBuren]

already contacted them. they had me reun some DL tests, and the speed just kept droping. They're sending a tech over this weekend. But thanks for all the help.

open cablenut and click delete cablenut tweaks and click save to registry

reboot your pc, and make a new speedtest without router

also leave your pc with default settings when they come to your house, when they fixed the problem with loss, come back here and we can help you go even faster

VanBuren

[vagarcia74]

For the last several days I've been getting very poor download speeds. I've had techs come and look at the lines, and have found nothing, Yesterday they changed my modem, and still the DL speeds are pathetic. I've done virus checks, as well as looked for spyware with every system I know of. Any suggestions from anyone. My ISP is comcast, and I'm currently not using a router, and just using their modem.

[vagarcia74]

I've already done that Van

[McCleud]

This is VERY likely unrelated to the settings of his machine in this case and may infact be an external "to the users" issue. I am in the Wylie area east of Dallas and COMCAST over the past few days has been absolute shit regarding stability, consistency and especially speed.  According to comcast they do not currently have a known issue and think it is 'local' (user problem) but this is obsurd. A major outage happened about a month ago in the Garland area that crippled enough 'important' users (business) that they resolved it. After that things were back on track and smooth/fast until a few days ago when things started going bad again, somewhere. I have the 6mpbs/768K package and when comcast is working, I get the full speed confirmed using this site + dslreports + university sites. Right now though it's puking along at a chunking 1.3mpbs +/-50% variance! Sickening.

Comcast doesn't seem to care that we don't get the speeds we pay for. They only seem to care that they can ping the modem using MAC so they can say "well it appears you have internet connectivity! Guess you must have some local problem!"

To me, that answer is SO FAR beyond acceptable I can't describe it. I look at it in these terms. If I went and bought myself a Porsche and realized the top speed of the car was about the same as a Pinto I would expect the dealer to either fix the broken Porsche or sell the cars at the price of a Pinto. Right now, I'm paying for a Porsche ($70/m!) but am driving a busted Pinto with black smoke pouring out the pipes...

Comcast needs to address this crap. They seem to have no known way of determining where bottlenecks/problems are happening until something major finally happens that gets their "business customers" pissed off and barking at their door about performance issues.

As an engineer I can invision M A N Y ways they could implement methods of tracing these issues better. For instance, having simple TCP server/client software written that specifically bursts/packs a data pipe with large streams (50+mbps) and monitors all aspects. The client/server modules could be placed throughout the country at major hubs. Sounds simple enough, and I've written enough TCP code to know that it actually is as simple as it sounds. Having this could allow further isolation of potential particular 'paths/routes/hops" problems that don't otherwise immediately show up on their doorstep in the form of a business saying "HEY, umm, wth? Fix this!"

Just my 2cents (left over from the $70/m sent to Comcast).

[VanBuren]

hey McCleud and welcome to the forum

thanks alot for that info, i didnt know it was that bad

i merged this thread vagarcia74, its easyer if we stick to same thread, then we know what we tested already and so on

run a new line quality test, and make sure your pingable, disable firewall or config it to allow echo requests

i have a feeling the loss is to your gateway

VanBuren

[vagarcia74]

How do I make the modem ping able?