WARNING: This is an Archive - Try the New TestMy.net
Home
 
Welcome, Guest. Please login or register.
 
  spcr
» Home » Comcast user subscribed to 6000 down, only getting 3200. Any help please?
    
  Home    Help    Search    Login    Register  
 
News : Before you post... try a Why don't you search? - Many simple questions have already been answered.  If your query turns up dry then post, we always have people waiting for your questions. azn May 24, 2012, 04:30:46 AM
old.testmy.net forums  |  Main Forum  |  Make it Faster...  |  Topic: Comcast user subscribed to 6000 down, only getting 3200. Any help please? Advanced search
  0 Members and 1 Guest are viewing this topic. « previous next »
Topic Tools Search this topic
 Pages 1 Go Down
Author
Topic: Comcast user subscribed to 6000 down, only getting 3200. Any help please?  (Read 2313 times)
raydirector
Earning Trust
*
Offline Offline

Posts: 4


View Profile
« on: March 28, 2005, 02:17:34 PM »
We are subscribed to Comcasts 6600/768 service and it was working fine right after the upgrades, but a few weeks later I can't get anything over 4000. Any help would be appreciated. Would a custom cablenut config help out or is this indicative of a larger problem? Anyway, here are my test results:

::::::::::.. Download Stats ..::::::::::
Connection is:: 3046 Kbps about 3 Mbps (tested with 5983 kB)
Download Speed is:: 372 kB/s
Tested From:: http://www.testmy.net/
Test Time:: Mon Mar 28 2005 16:03:24 GMT-0500 (Eastern Standard Time)
Bottom Line:: 54X faster than 56K 1MB download in 2.75 sec
Diagnosis: 90% + Okay : running at 94.1 % of your hosts average (Comcast.net)
Validation Link:: http://testmy.net/stats/id-J8RL6ZPXT

_______________

::::::::::.. Upload Stats ..::::::::::
Connection is:: 687 Kbps about 0.7 Mbps (tested with 579 kB)
Upload Speed is:: 84 kB/s
Tested From:: http://www.testmy.net/
Test Time:: Mon Mar 28 2005 16:04:32 GMT-0500 (Eastern Standard Time)
Bottom Line:: 12X faster than 56K 1MB upload in 12.19 sec
Diagnosis: Awesome! 20% + : 104.46 % faster than the average for host (Comcast.net)
Validation Link:: http://testmy.net/stats/id-CSYJGL7O4

_____________

TCP/Web100 Network Diagnostic Tool v5.3.3d
click START to begin
Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done
running 10s outbound test (client to server) . . . . . 678.38kB/s
running 10s inbound test (server to client) . . . . . . 2.84Mb/s
Your PC is connected to a Cable/DSL modem

WEB100 Kernel Variables:
Client: localhost/127.0.0.1
AckPktsIn: 1244
AckPktsOut: 0
BytesRetrans: 0
CongAvoid: 0
CongestionOverCount: 0
CongestionSignals: 0
CountRTT: 1244
CurCwnd: 65700
CurMSS: 1460
CurRTO: 380
CurRwinRcvd: 65535
CurRwinSent: 5840
CurSsthresh: 2147483647
DSACKDups: 0
DataBytesIn: 0
DataBytesOut: 3568240
DataPktsIn: 0
DataPktsOut: 2444
DupAcksIn: 0
ECNEnabled: 0
FastRetran: 0
MaxCwnd: 65700
MaxMSS: 1460
MaxRTO: 410
MaxRTT: 210
MaxRwinRcvd: 65535
MaxRwinSent: 5840
MaxSsthresh: 0
MinMSS: 1460
MinRTO: 280
MinRTT: 80
MinRwinRcvd: 65535
MinRwinSent: 5840
NagleEnabled: 1
OtherReductions: 0
PktsIn: 1244
PktsOut: 2444
PktsRetrans: 0
X_Rcvbuf: 103424
RcvWinScale: 2147483647
SACKEnabled: 3
SACKsRcvd: 0
SendStall: 0
SlowStart: 43
SampleRTT: 180
SmoothedRTT: 170
X_Sndbuf: 103424
SndWinScale: 2147483647
SndLimTimeRwin: 9200665
SndLimTimeCwnd: 844855
SndLimTimeSender: 2781
SndLimTransRwin: 1
SndLimTransCwnd: 1
SndLimTransSender: 1
SndLimBytesRwin: 3382820
SndLimBytesCwnd: 185420
SndLimBytesSender: 0
SubsequentTimeouts: 0
SumRTT: 215570
Timeouts: 0
TimestampsEnabled: 0
WinScaleRcvd: 2147483647
WinScaleSent: 2147483647
DupAcksOut: 0
StartTimeUsec: 417714
Duration: 10053821
c2sData: 2
c2sAck: 2
s2cData: 9
s2cAck: 3
half_duplex: 0
link: 100
congestion: 0
bad_cable: 0
mismatch: 0
spd: 0.00
bw: 64.28
loss: 0.000001000
avgrtt: 173.29
waitsec: 0.00
timesec: 10.00
order: 0.0000
rwintime: 0.9156
sendtime: 0.0003
cwndtime: 0.0841
rwin: 0.5000
swin: 0.7891
cwin: 0.5013
rttsec: 0.173288
Sndbuf: 103424
aspd: 4.36205

Checking for mismatch on uplink
   (speed > 50 [0>50], (xmitspeed < 5) [0.67<5]
   (rwintime > .9) [0.91>.9], (loss < .01) [1.0E<.01]
Checking for excessive errors condition
   (loss/sec > .15) [1.0E>.15], (cwndtime > .6) [0.08>.6],
   (loss < .01) [1.0E<.01], (MaxSsthresh > 0) [0>0]
Checking for 10 Mbps link
   (speed < 9.5) [0<9.5], (speed > 3.0) [0>3.0]
   (xmitspeed < 9.5) [0.67<9.5] (loss < .01) [1.0E<.01], (mylink > 0) [3.0>0]
Checking for Wireless link
   (sendtime = 0) [3.0E=0], (speed < 5) [0<5]
   (Estimate > 50 [64.28>50], (Rwintime > 90) [0.91>.90]
    (RwinTrans/CwndTrans = 1) [1/1=1], (mylink > 0) [3.0>0]
Checking for DSL/Cable Modem link
   (speed < 2) [0<2], (SndLimTransSender = 0) [1=0]
    (SendTime = 0) [3.0E-4=0], (mylink > 0) [3.0>0]
Checking for half-duplex condition
   (rwintime > .95) [0.91>.95], (RwinTrans/sec > 30) [0.1>30],
    (SenderTrans/sec > 30) [0.1>30], OR (mylink <= 10) [3.0<=10]
Checking for congestion
   (cwndtime > .02) [0.08>.02], (mismatch = 0) [0=0]
   (MaxSsthresh > 0) [0>0]

estimate = 64.28 based on packet size = 11Kbits, RTT = 173.29msec, and loss = 1.0E-6
The theoretical network limit is 64.28 Mbps
The NDT server has a 101.0 KByte buffer which limits the throughput to 4.55 Mbps
Your PC/Workstation has a 63.0 KByte buffer which limits the throughput to 2.88 Mbps
The network based flow control limits the throughput to 2.89 Mbps

Client Data reports link is 'T1', Client Acks report link is 'T1'
Server Data reports link is '10 Gig', Server Acks report link is 'Ethernet'

_________________

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\Owner>tracert testmy.net

Tracing route to testmy.net [67.19.36.6]
over a maximum of 30 hops:

  1     1 ms     1 ms     1 ms  192.168.0.1
  2    31 ms    19 ms    13 ms  10.239.12.1
  3    17 ms    11 ms    12 ms  c-66-56-22-25.hsd1.ga.Comcast.net [66.56.22.25]

  4    15 ms    13 ms    13 ms  c-66-56-23-46.hsd1.ga.Comcast.net [66.56.23.46]

  5    18 ms    12 ms    18 ms  12.124.64.21
  6    19 ms    19 ms    21 ms  tbr2-p013801.attga.ip.att.net [12.123.21.101]
  7    42 ms    33 ms    48 ms  tbr1-cl1.dlstx.ip.att.net [12.122.2.89]
  8    29 ms    34 ms    32 ms  gar1-p360.dlrtx.ip.att.net [12.123.196.101]
  9    49 ms    33 ms    33 ms  12.119.136.14
 10    72 ms    33 ms    52 ms  dist-vlan32.dsr3-1.dllstx3.theplanet.com [70.85.
127.61]
 11    35 ms    66 ms    30 ms  dist-vlan-42.dsr2-2.dllstx4.theplanet.com [70.85
.127.91]
 12    30 ms    33 ms    41 ms  gig1-0-1.tp-car9-2.dllstx4.theplanet.com [67.18.
116.70]
 13    36 ms    32 ms    29 ms  6.67-19-36.reverse.theplanet.com [67.19.36.6]

Trace complete.

____________

C:\Documents and Settings\Owner>pathping testmy.net

Tracing route to testmy.net [67.19.36.6]
over a maximum of 30 hops:
  0  arnor.hsd1.ga.Comcast.net. [192.168.0.101]
  1  192.168.0.1
  2  10.239.12.1
  3  c-66-56-22-25.hsd1.ga.Comcast.net [66.56.22.25]
  4  c-66-56-23-46.hsd1.ga.Comcast.net [66.56.23.46]
  5  12.124.64.21
  6  tbr2-p013801.attga.ip.att.net [12.123.21.101]
  7  tbr1-cl1.dlstx.ip.att.net [12.122.2.89]
  8  gar1-p360.dlrtx.ip.att.net [12.123.196.101]
  9  12.119.136.14
 10  dist-vlan31.dsr3-2.dllstx3.theplanet.com [70.85.127.30]
 11  dist-vlan41.dsr2-1.dllstx4.theplanet.com [70.85.127.83]
 12  gig1-0-1.tp-car9-2.dllstx4.theplanet.com [67.18.116.70]
 13  6.67-19-36.reverse.theplanet.com [67.19.36.6]

Computing statistics for 325 seconds...
            Source to Here   This Node/Link
Hop  RTT    Lost/Sent = Pct  Lost/Sent = Pct  Address
  0                                           arnor.hsd1.ga.Comcast.net. [192.16
8.0.101]
                                0/ 100 =  0%   |
  1    1ms     0/ 100 =  0%     0/ 100 =  0%  192.168.0.1
                                0/ 100 =  0%   |
  2   23ms     0/ 100 =  0%     0/ 100 =  0%  10.239.12.1
                                0/ 100 =  0%   |
  3   23ms     0/ 100 =  0%     0/ 100 =  0%  c-66-56-22-25.hsd1.ga.Comcast.net
[66.56.22.25]
                                0/ 100 =  0%   |
  4   24ms     0/ 100 =  0%     0/ 100 =  0%  c-66-56-23-46.hsd1.ga.Comcast.net
[66.56.23.46]
                                0/ 100 =  0%   |
  5   24ms     0/ 100 =  0%     0/ 100 =  0%  12.124.64.21
                                0/ 100 =  0%   |
  6  ---     100/ 100 =100%   100/ 100 =100%  tbr2-p013801.attga.ip.att.net [12.
123.21.101]
                                0/ 100 =  0%   |
  7  ---     100/ 100 =100%   100/ 100 =100%  tbr1-cl1.dlstx.ip.att.net [12.122.
2.89]
                                0/ 100 =  0%   |
  8  ---     100/ 100 =100%   100/ 100 =100%  gar1-p360.dlrtx.ip.att.net [12.123
.196.101]
                                0/ 100 =  0%   |
  9   44ms    67/ 100 = 67%    67/ 100 = 67%  12.119.136.14
                                0/ 100 =  0%   |
 10  ---     100/ 100 =100%   100/ 100 =100%  dist-vlan31.dsr3-2.dllstx3.theplan
et.com [70.85.127.30]
                                0/ 100 =  0%   |
 11  ---     100/ 100 =100%   100/ 100 =100%  dist-vlan41.dsr2-1.dllstx4.theplan
et.com [70.85.127.83]
                                0/ 100 =  0%   |
 12   40ms     0/ 100 =  0%     0/ 100 =  0%  gig1-0-1.tp-car9-2.dllstx4.theplan
et.com [67.18.116.70]
                                0/ 100 =  0%   |
 13   38ms     0/ 100 =  0%     0/ 100 =  0%  6.67-19-36.reverse.theplanet.com [
67.19.36.6]

Trace complete.

C:\Documents and Settings\Owner>

_______
« Last Edit: March 28, 2005, 02:20:57 PM by raydirector » Logged
 
peepnklown
Global Moderator
Expert
*
Offline Offline

Gender: Male
Posts: 1260


Rabbi peepnklown


View Profile WWW
« Reply #1 on: March 28, 2005, 02:50:02 PM »
I would do the following; hopefully you are somewhat computer savvy.

This should help tweak your Windows XP SP2
http://www.speedguide.net/read_articles.php?id=1497

This should help tweak your Windows XP in general
http://www.speedguide.net/downloads.php

This should further help (thanks to VAN)
http://testmy.net/topic-2097
Logged
DEAD NUMBER 339 = Hard Electronic Music
 
raydirector
Earning Trust
*
Offline Offline

Posts: 4


View Profile
« Reply #2 on: March 28, 2005, 03:47:10 PM »
Thanks for the info, and I would consider myself somewhat savvy. I don't want to say I'm the bees' knees and sound like I'm tooting my own horn. I have already run that first optimization. A few weeks ago is when I did it, I think. Usually I read all I can find before posting. If someone can give me some pointers on how to create my own cablenut tweak I'll do it myself. I just need to know how to make sense of the data from all the tests. But again, thanks, I really do appreciate any attempts to help.
Logged
 
Dittoz
Full Member
*
Offline Offline

Gender: Male
Posts: 57


View Profile
« Reply #3 on: March 28, 2005, 08:05:36 PM »
The problem you've described is exactly my problem.  What area are you in?  You might want to check out the thread I started, maybe something in that might be able to help you out.  http://www.testmy.net/topic-3779
Logged
"I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use." -- Galileo Galilei
 
raydirector
Earning Trust
*
Offline Offline

Posts: 4


View Profile
« Reply #4 on: March 29, 2005, 06:13:34 AM »
I am located in Atlanta, GA.
« Last Edit: March 29, 2005, 06:16:03 AM by raydirector » Logged
 
Graywolfie
Earning Trust
*
Offline Offline

Posts: 2


View Profile
« Reply #5 on: March 29, 2005, 08:14:48 AM »
I've been following this forum and it is very informative. I figured I'd put my two cents worth into this thread. I've personnally been through so many tweaks/settings/adjustments I should be spinning. I also have the 6000/768 for about one week. I upgraded because I found out you could get it here in the forum. I live in the Greensburg area of PA just east of Pittsburgh. The people at the local Comcast office weren't hardly aware that there was even a faster speed available until I asked about it and they checked into it. They said they never had anyone ask about it. Go figure. Anyway, I exchanged my old RCA modem of 5 years for a new WebStar 2100. I called Comcast and had my account upgraded and then connected with a tech person and all he said for me to do was cycle the modem, which I knew, and poof....everything would work.

Well, that's all fine and dandy, and yes, I have great upload speed always above 700 everytime I check. The download however is really goofy. Like I said, I tried everything suggested, settings, eliminating the router from the mix, swap cables, splitters, blah, blah blah....

Still the same basic result. BUT, I read somewhere around here that if you change the MAC address on the WAN side of the router (LinksSYS BEFSR41) and then reboot the modem it would assign a new IP and see what happens. Fortunately I have a half dozen or so NIC's lying around. So I tried each ones MAC address, methodically.

The results are interesting. Some IP addresses give me dismal results, under 2000 down (upload is always high), a few give me 2800 to 4000, and one gives me mid 4000 consistantly. Interesting eh? Actually out of everything I tried doing this gave me the most improved result. Unfortunately, I have yet to reach the 6000 everyone talks about. If I return back to any previous IP's (the lease is still valid so I get the same IP) sure enough the speed returns to what I got for that IP. I've tried the process 3 different days with all results the same. So, I picked the best one and that is what I am using at the moment.

My thoughts on ppl who are going gang busters and then see a drop off... could it be that their IP lease expires... a new IP is assigned and thus the drop???

Therefore, it seems to me that the lack of speed has little to do with the routers, computers, settings, modems inside anyone's humble abode. It seems the trouble is "out there in Comcast Land" and until they solve it we are doing nothing but spinning our wheels is some cases. It seems the cable system has been built in so many stages, coax, fiber etc and added so many features, analog, digital, telephone service, internet.... that it is probably one big confusing mess that no one tech person can comprehend.

I am by far no expert, just tinkering around like most here for the best speed. I just wish I could get assigned the magical IP that gives the advertised speed.

As frustrating as this is, to comfort myself I just think about the old days of AOL and going to make a sandwich while you waited for the computer to yell out "WELCOME!" after dialing 3 numbers a dozen times each....lol.

Good Luck!
Logged
 
netmasta
Inactive Moderator
TMN Veteran
*
Offline Offline

Gender: Male
Posts: 2882


Comcast 6Mb/384Kb using Firefox


View Profile WWW
« Reply #6 on: March 29, 2005, 09:02:10 AM »
First, the reason you are not getting the higher speeds yet is probably because Comcast is still in the process of upgrading. I'd give it a month or so and see how your speeds are then.

Second, any ip address will work with any speed. There no special ip addresses assigned for higher speeds.
Logged
Click here and here before posting speed related problems. These topics can be very useful.


Always remember, 'It could be worse'.
 
Dittoz
Full Member
*
Offline Offline

Gender: Male
Posts: 57


View Profile
« Reply #7 on: March 29, 2005, 09:13:59 AM »
I'm not sure on the specifics but Graywolfie is the first person that has put a credible explanation out there on the reason some of us get such great speeds at first, and then bam.  Sucko.  But I'm not sure on the ip situation.  Maybe there is something else that "expires" after a couple of weeks or about a month?
Logged
"I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use." -- Galileo Galilei
 
Graywolfie
Earning Trust
*
Offline Offline

Posts: 2


View Profile
« Reply #8 on: March 29, 2005, 09:45:31 AM »
Quote from: netmasta on March 29, 2005, 09:02:10 AM

Second, any ip address will work with any speed. There no special ip addresses assigned for higher speeds.

Maybe so netmasta. I am no expert on the subject by any stretch. However, how would you explain this. I can go to speakeasy, pittsburgh and test my speed  6 times and get 4000 - 4500 every time. Then within minutes, change the MAC in the router, get a new IP, and then 6 times in a row get 1600 to 1800. Change it to a third, right away, and get 2000 - 2500. And then, change it back to the original MAC in the router and get the original IP and my speeds are back to a consistant 4000 - 4500????

I may be all wet here but it surely looks like a pattern to me. I've said this previously, 3 days, several swaps of assigned IP's, the same MAC's = the same IP's assigned, with the same result.

As more food for thought, I have 3 computers here in my office all running windows xp pro, all different parts MB, CPU, RAM, etc, and I've only done tweaks on one. Yet, the speed tests are roughly the same on each one. During this time the only thing I'm doing is changing the MAC in the router and getting the new IP. Then roll from one keyboard to the next and try.

Routing through something "out there" that is configured differently, less user load, what ever, i haven't a clue. That said, if you read threads here, I've yet to see the ultimate answer that solves or even sheds light on the, what seems like, common problem.

I'm sure one day I will check it and my little world and Comcast will be in sync and all will be well. At least until the next so called "upgrade".
Logged
 
pitbull481
TMN Veteran
*
Offline Offline

Gender: Male
Posts: 2241


Mexicano Hasta La Madre :-)


View Profile
« Reply #9 on: March 29, 2005, 10:10:45 AM »
my speeds were doing very good to (also have 6000/768). illinois had the upgrade like 2 months ago. and just last week til now my download speeds just dropped like 2Mb  angry5 my uplaod is still doing good (averaging 700kb). i call Comcast yesterday. i'll be getting a tech in my house in about an 1 hour or 2
Logged
 
Print  Pages 1 Go Up
old.testmy.net forums  |  Main Forum  |  Make it Faster...  |  Topic: Comcast user subscribed to 6000 down, only getting 3200. Any help please? « previous next »
Jump to:  

  Page created in 0.217 seconds with 19 queries.
Powered by MySQL Powered by PHP Valid XHTML 1.0! Valid CSS!
 Powered by SMF 1.1.13 | SMF © 2006-2011, Simple Machines LLC
    


 

  

 

 © 2007 testmy.net - Contact - Legal - This is an older version: Try Bandwidth Speed Test v12