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Comcast=FRUSTRATION-TWEAK ADVICE PLEASE


misery

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1. WinXP Pro SP2

2. Comcast  6000/768 - Linksys BEFSR41 v4 Router

3. http://ttester.broadbandreports.com/tweak/block:19d2aed?service=cable&speed=6000&os=winXP&via=normal

TCP properties for IP = xx.xxx.xx.xxx ()

Browser/OS = Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4

Notes: Read the Analyzer FAQ if the above is not your IP address.

TCP options string = 020405b40103030201010402

MTU = 1500

MTU is fully optimized for broadband.

MSS = 1460

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

Default Receive Window (RWIN) = 256960

RWIN Scaling (RFC1323) = 2 bits (scale factor of 4)

Unscaled Receive Window = 64240

RWIN is 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)

128480 (MSS x 44 * scale factor of 2)

64240 (MSS x 44)

bandwidth * delay product (Note this is not a speed test):

Your RcvWindow limits you to: 10278.4 kbps (1284.8 KBytes/s) @ 200ms

Your RcvWindow limits you to: 4111.36 kbps (513.92 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 49 hops

TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349) = 00000000 (0)

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

Connection is:: 305 Kbps about 0.3 Mbps (tested with 386 kB)

Download Speed is:: 37 kB/s

Tested From:: https://testmy.net/ (server2)

Test Time:: Wed Jun 08 2005 21:44:41 GMT-0700 (Pacific Daylight Time)

TCP/Web100 Network Diagnostic Tool v5.3.3d

click START to begin

Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done

running 10s outbound test (client to server) . . . . . 687.02Kb/s

running 10s inbound test (server to client) . . . . . . 364.06kb/s

Your PC is connected to a Cable/DSL modem

Information: Other network traffic is congesting the link

Log created by AutoCheck.bat on Wed 06/08/2005

Pinging testmy.net [67.18.179.85] with 32 bytes of data:

Reply from 67.18.179.85: bytes=32 time=140ms TTL=47

Reply from 67.18.179.85: bytes=32 time=116ms TTL=47

Reply from 67.18.179.85: bytes=32 time=90ms TTL=47

Reply from 67.18.179.85: bytes=32 time=82ms TTL=47

Ping statistics for 67.18.179.85:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 82ms, Maximum = 140ms, Average = 107ms

Tracing route to testmy.net [67.18.179.85]

over a maximum of 30 hops:

1    <1 ms    <1 ms    <1 ms  192.168.1.1

2    11 ms    9 ms    19 ms  10.232.0.1

3    44 ms    32 ms    9 ms  24.130.3.205

4  106 ms    70 ms    64 ms  24.130.65.33

5    69 ms    76 ms    59 ms  24.130.0.182

6  102 ms    88 ms    71 ms  24.130.0.186

7    89 ms    87 ms    63 ms  24.130.0.62

8    83 ms    71 ms    69 ms  12.119.17.5

9  114 ms  112 ms  104 ms  tbr1-p013901.la2ca.ip.att.net [12.123.28.201]

10  124 ms    92 ms    98 ms  tbr1-cl2.dlstx.ip.att.net [12.122.10.49]

11    85 ms  119 ms    88 ms  gar1-p360.dlrtx.ip.att.net [12.123.196.101]

12  120 ms    75 ms    93 ms  12.119.136.14

13  114 ms  150 ms  115 ms  dist-vlan32.dsr3-2.dllstx3.theplanet.com [70.85.127.62]

14    90 ms    92 ms    89 ms  dist-vlan-42.dsr2-2.dllstx4.theplanet.com [70.85.127.91]

15    99 ms  114 ms  115 ms  gig1-0-1.tp-car9-1.dllstx4.theplanet.com [67.18.116.69]

16  125 ms    89 ms    86 ms  85.67-18-179.reverse.theplanet.com [67.18.179.85]

Trace complete.

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Guest helloimtim

What about reseting your settings to default and seeing what happens. Or have you tried that. I also am guessing you did all the scans for nastys while in safe mode.

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Yeah, i've done scans with spybot, microsoft anti-spy, ad-ware, did virus scans.

i've done a hard reset on my router and modem.

See it isn't even my upstream that gets me frustrated with comcast.

it's my downstream thats constantly really pathetic..

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Guest helloimtim

Cable can be tough. Sharing a line with countless others. VanBuren is the tweak master with that. Give him a shout. Even though cable is nice I really prefer my dsl.  But I only use the net to kill time.

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Tell me about it...

Though i've heard by the end of september comcast will be upgrading it's GOLD TIER members to 14mbs/4mbs.

For no cost at all.. which i'm a tad excited about..

It's just upsetting having to wait till 1-2am to enjoy my cable. and having to pay $65monthly for crap!@

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hey misery :)

try this

update to latest NIC driver and bypass your router

connect direct to modem via ethernet

powercycle modem, leave if off for atleast 30 seconds

now test speed again

if its still not good, try another LAN cable between your modem and PC

still no good?

call your ISP and let them check your modem signals

VanBuren :)

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Two Speakeasy Results

2005-06-09 16:00:41 EST: 7967 / 715

Your download speed : 8159034 bps, or 7967 kbps.

A 995.9 KB/sec transfer rate.

Your upload speed : 732779 bps, or 715 kbps.

2005-06-09 16:02:18 EST: 8011 / 710

Your download speed : 8204045 bps, or 8011 kbps.

A 1001.4 KB/sec transfer rate.

Your upload speed : 727272 bps, or 710 kbps.

TestMy.net Results

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

Connection is:: 5725 Kbps about 5.7 Mbps (tested with 2992 kB)

Download Speed is:: 699 kB/s

Tested From:: https://testmy.net/ (server1)

Test Time:: Thu Jun 09 2005 13:08:19 GMT-0700 (Pacific Daylight Time)

Bottom Line:: 102X faster than 56K 1MB download in 1.46 sec

Diagnosis: Awesome! 20% + : 59.29 % faster than the average for host (comcast.net)

:::.. Upload Stats ..:::

Connection is:: 729 Kbps about 0.7 Mbps (tested with 579 kB)

Upload Speed is:: 89 kB/s

Tested From:: https://testmy.net/ (server2)

Test Time:: Thu Jun 09 2005 13:09:54 GMT-0700 (Pacific Daylight Time)

Bottom Line:: 13X faster than 56K 1MB upload in 11.51 sec

Diagnosis: Awesome! 20% + : 111.92 % faster than the average for host (comcast.net)

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well then i'm going to do that now. before

i'm raped of my connection by the rest of the

millions of people in Los Angeles. i'll update

my last reply if i recieve anything better than my present.

Thanks Van

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i've definetly passed on the good word of this site don't fret.

i've also just modifed my entry with the before speed results

and replaced them with the current ones i received from

Speakeasy and Testymy.net, tell me what you think

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  • 2 weeks later...

whoa, im interested in comcasts 14/4, im currently on their 6800/768 connection, not bad for 55bux a month AFTER The promo.

I truly have NO need for this connection type or speed, it's just a crutch, it's nice to know the bandwidth is there.

I have played with running gaming servers for Half Life: Counterstrike and HL2 Counterstrike: SOURCE, and Half Life DoD, I have better results now that i have more upload. With 14/4 i could run a great gaming server. It's been good serving files out in iRC, get lots of access and lots of gigs served even with the 6800/768.

i'll be calling up local tech to find out when it's available, could u link to a source to this claim?

I know some folx that work in Comcast Support, in knoxville, they say they know nothing of it.

they aren't in Tech though. Just customer service.

I've had best preformance using a good router, im not trusting enough to go wireless. I can get all kinds of free access downtown, i don't want that happening to me.

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Hello, All

First post.  I've read the sticky and made quite a bit of progress on my connection speed; however, I have an odd phenomenon which seems to occur when I run the speed test (download).  When d/ling the 2296 kB file, my browser almost always "hangs" at exactly the same point in the process, about 20% on the progress bar.  Occasionally, this does not happen and I get much better results (about 4Mbps vs. under 3).

Additionally, the other computer on my wireless net never seems to do this, and generally has higher speeds.  What caught my attention is the fact that this always seems to occur at almost the same point in the download.  Disabling the progress bar doesn't seem to make any difference in as far as the inconsistencies.

Thoughts on what could be causing this?

Thanks for your help.

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Thanks for the recommendation.  I installed a Linksys LNE100TX today.  Speeds are a bit better, and the "hanging" seems much improved, but it still does it occasionally, still at that same point (20% on 3 MB file, 10% on 6 MB file, etc.)

Also, oddly, the other computer on my net (using a wireless connection, whereas mine is wired) still has higher speeds than mine!  (older computer, older CPU, less RAM, etc.)

Clearly, there is still some problem with my computer itself, or so it would seem.  Could it be the cable from wireless router to PC?

Any other thoughts?

Still only getting about 3400 kbps, whereas I'm paying for 6000. (Other computer regularly hitting 4100)

Thanks, again, for any help.

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I do have Norton and have found it to slow the test considerably, so I have been disabling it.

However, the "hanging" problem still occurs, even when disabled.

Seems like there's something that happens always right around 600 kB of the download.

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u know orignaly i started with a Comcast 3 mb line, then ordered the pro line 6mb down 1 up but i only got 5.7 tops dl no matter what i did until......

i delted all the cablenut, ispeed, and tweakxp programs, set up mtu mss rwin in cmd, and got cat 6 cables

and nowa blistering 6.4 /but only .7 tops ul i can push bro and my hardwares top end!!

"or is it? :?

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