Re: [Cable] Not fast enough... in Broadband Tweaks http://www.dslreports.com/forum/r20216084 en Sat, 22 Nov 2008 12:31:20 EDT Sat, 22 Nov 2008 12:31:20 EDT Re: [Cable] Not fast enough... http://www.dslreports.com/forum/remark,20308433 sonny30 : yeah, thanks for you help.]]> http://www.dslreports.com/forum/remark,20308433 Wed, 09 Apr 2008 13:39:49 EDT Re: [Cable] Not fast enough... http://www.dslreports.com/forum/remark,20308080 Irish Shark : Looks like that took care of it, Sonny.]]> http://www.dslreports.com/forum/remark,20308080 Wed, 09 Apr 2008 12:46:44 EDT Re: [Cable] Not fast enough... http://www.dslreports.com/forum/remark,20307985 sonny30 : well I got a new modem and here are the test results.....
]]> http://www.dslreports.com/forum/remark,20307985 Wed, 09 Apr 2008 12:29:13 EDT Re: [Cable] Not fast enough... http://www.dslreports.com/forum/remark,20225227 sonny30 : okay i'll get another modem and get back to you guys thanks for the suggestions.]]> http://www.dslreports.com/forum/remark,20225227 Tue, 25 Mar 2008 20:25:08 EDT Re: [Cable] Not fast enough... http://www.dslreports.com/forum/remark,20222604 Irish Shark : I have PowerBoost on Cox and 64240 gives me over 23mb down on a 10mb line.

On OOL uncapped/5 some folks use 64240 and pull close to 30mb down.

As far as Sonny is concerned, he is not going to see anything close to 30mb on his 6mb plan. I would guess 12mb or so.

--
"You can observe a lot by watching". Yogi Berra
Click for full size
]]> http://www.dslreports.com/forum/remark,20222604 Tue, 25 Mar 2008 13:08:06 EDT Re: [Cable] Not fast enough... http://www.dslreports.com/forum/remark,20222539 Irish Shark : Sorry, I did not pick this up at on the first pass. The MODEM is a DOCSIS 1.0 10baseT and is no longer manufactured.

First, the MODEM has to go. I would suggest a MOTO 51xx.
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"You can observe a lot by watching". Yogi Berra]]> http://www.dslreports.com/forum/remark,20222539 Tue, 25 Mar 2008 12:58:07 EDT Re: [Cable] Not fast enough... http://www.dslreports.com/forum/remark,20220069 Rick :
said by sonny30 See Profile :

tweak test
»/tweakr/block:···a=normal

ATL Speakeasy
Download Speed: 3619 kbps (452.4 KB/sec transfer rate)
Upload Speed: 362 kbps (45.3 KB/sec transfer rate)

DAL Speakeasy
Download Speed: 3747 kbps (468.4 KB/sec transfer rate)
Upload Speed: 371 kbps (46.4 KB/sec transfer rate)

FTP Transfer Rate
was about 290-320k
Your results are still way off from where they should be.
The issue might be that modem you're using. You don't even have powerboost kicking in either.
You might want to post in the comcast forum and ask others there if they have any experience with that particular modem. Some modems seem to prevent people from realizing the higher speeds.
While your rwin is still too low for what most of us get on Comcast with powerboost..until you get this resolved..the 64,000 # is appropriate for these lower speeds you're seeing.

IMHO..that modem would be your number one suspect that could be causing this.

(your router is ok..many people use that model with no problems)
I'm using the motorola sb5120 and as you can see..getting great results with that.
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The Coyote captured the RR! Roadrunner Rick is now Comcastic!]]> http://www.dslreports.com/forum/remark,20220069 Mon, 24 Mar 2008 22:35:52 EDT Re: [Cable] Not fast enough... http://www.dslreports.com/forum/remark,20220014 Rick :
said by Irish Shark See Profile :

No need to go that high on the RWIN for a 6mb line .....
Set Tcp Receive Window to 64240

We get powerboost speeds up to 30,000k with comcast.
200,020 is very appropriate for those kinds of speeds.

64240 would be too low.

Some users go with 125,000~150,000.
the higher # certainly works well for me.

My results using 200,020.
Certainly nothing to sneeze at. ;)
Last Result:
Download Speed: 27006 kbps (3375.8 KB/sec transfer rate)
Upload Speed: 2104 kbps (263 KB/sec transfer rate)
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The Coyote captured the RR! Roadrunner Rick is now Comcastic!]]> http://www.dslreports.com/forum/remark,20220014 Mon, 24 Mar 2008 22:27:40 EDT Re: [Cable] Not fast enough... http://www.dslreports.com/forum/remark,20219619 sonny30 : tweak test
»/tweakr/block:···a=normal

ATL Speakeasy
Download Speed: 3619 kbps (452.4 KB/sec transfer rate)
Upload Speed: 362 kbps (45.3 KB/sec transfer rate)

DAL Speakeasy
Download Speed: 3747 kbps (468.4 KB/sec transfer rate)
Upload Speed: 371 kbps (46.4 KB/sec transfer rate)

FTP Transfer Rate
was about 290-320k]]> http://www.dslreports.com/forum/remark,20219619 Mon, 24 Mar 2008 21:25:45 EDT Re: [Cable] Not fast enough... http://www.dslreports.com/forum/remark,20216881 Irish Shark : No need to go that high on the RWIN for a 6mb line .....

Download DrTcp

Set Tcp Receive Window to 64240

Set Windows Scaling, Time Stamping, Selective Acks, Path MTU Discovery, Black Hole Detection to Default.

Leave Max Duplicate Acks and TTL Blank

Save/Exit DrTcp

Reboot

Rerun the Tweak Test

Run Two Speed Tests from the two DIFFERENT cities nearest to you that are listed here: Speakeasy POPs

Also, test here »ftp://ftp1.optonline.net/test512

Note your transfer rate after about 30 seconds. Then cancel the download.

Post the URL for the New Tweak Test. For the TWO Speakeasy Tests, Copy and Paste the speed results from those tests and note the speed from the FTP download test.
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"You can observe a lot by watching". Yogi Berra]]> http://www.dslreports.com/forum/remark,20216881 Mon, 24 Mar 2008 12:40:50 EDT Re: [Cable] Not fast enough... http://www.dslreports.com/forum/remark,20216084 Rick : Your RWIN is WAY too low for Comcast HSI.

Receive Window (RWIN): 17520

Personally, I and several others use 200,020 and it works great.

I'd recommend you try that setting and see how it works for you.

1)Download DrTCP from here »/drtcp
2)change your tcp receive window to 200,020
3)change windows scaling to on
4)leave everything else on default (and maxdupacks and ttl leave blank)

5)click apply..exit..reboot..run new tweak and speed test.
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The Coyote captured the RR! Roadrunner Rick is now Comcastic!]]> http://www.dslreports.com/forum/remark,20216084 Mon, 24 Mar 2008 10:01:54 EDT [Cable] Not fast enough... http://www.dslreports.com/forum/remark,20215491 sonny30 : I have Comcast the 6mb advertised speed, but I'm nowhere near that speed. I have a wireless router right next to my computer and am using an Ethernet cord from the first port, but it's just not fast as it should be. Any advice or recommendations would be greatly appreciated. Thanks again.

1. »/tweakr/block:···a=normal
2.
3. »/linequality/7···/2366119
4. Cable, Comcast, D-link DCM-200
5. NA
6. NA
7. Windows XP
8. 6mb/384k
9. NA
10. WRT54G
11. NA]]> http://www.dslreports.com/forum/remark,20215491 Mon, 24 Mar 2008 04:19:49 EDT