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Topic: Comcast Atlanta Traceroute drop  (Read 3509 times)
Mad Mongo
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« on: January 31, 2005, 09:09:13 AM »
Hello all New guy here ! So be forewarned I am kinda dumb at all of this.
I have been using the exact same setup here for years without many problems. About 6 days ago my connection started randomly stalling. Speed tests show anywhere from 0.2 - 2.1 in a matter of a minute or two. Traceroute drops after hop 13 - the test failing. Here is what Info I THINK you need to assist me if possible.
running Motorolo cable modem through Netgear RT311 Gateway throgh Netgear 8 port Switch. System is p3-133 1gig ram on XP SP2

::::::::::.. Download Stats ..::::::::::
Connection is:: 313 Kbps about 0.3 Mbps (tested with 386 KB)
Download Speed is:: 38 kB/s
Tested From:: http://www.testmy.net/
Test Time:: Mon Jan 31 11:01:38 EST 2005
Bottom Line:: 6X faster than 56K 1MB download in 26.95 sec
Validation Link:: http://testmy.net/id-TIQNDHBWS

::::::::::.. Download Stats ..::::::::::
Connection is:: 1967 Kbps about 2 Mbps (tested with 1496 KB)
Download Speed is:: 240 kB/s
Tested From:: http://www.testmy.net/
Test Time:: Mon Jan 31 11:03:31 EST 2005
Bottom Line:: 35X faster than 56K 1MB download in 4.27 sec
Validation Link:: http://testmy.net/id-SVT3YRQZH

TraceRoute to xx.xx.xx.xxx [c-xx-xx-xx-xxx.atl.client2.attbi.com]

Hop (ms) (ms) (ms)  IP Address Host name
1 0 0 0  66.98.244.1 gphou-66-98-244-1.ev1.net
2 0 0 0  66.98.241.4 gphou-66-98-241-4.ev1.net
3 0 0 1  66.98.240.6 gphou-66-98-240-6.ev1.net
4 1 1 1  129.250.10.229 ge-2-1-0.r02.hstntx01.us.bb.verio.net
5 10 10 10  129.250.5.100 p16-0-3-0.r21.dllstx09.us.bb.verio.net
6 144 210 216  129.250.9.38 p16-0.att.dllstx09.us.bb.verio.net
7 9 9 9  12.123.17.82 tbr1-p012101.dlstx.ip.att.net
8 40 40 41  12.122.2.90 tbr2-cl1.attga.ip.att.net
9 40 40 40  12.123.21.141 gar5-p390.attga.ip.att.net
10 43 43 43  12.118.120.90 -
11 42 42 42  66.56.22.245 -
12 43 42 42  66.56.23.3 c-66-56-23-3.atl.client2.attbi.com
13 41 41 41  66.56.22.133 -
14 Timed out Timed out Timed out   -
15 Timed out Timed out Timed out   -
16 Timed out Timed out Timed out   -

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VanBuren
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« Reply #1 on: January 31, 2005, 09:46:02 AM »
hey  Mad Mongo and welcome to the forum Smile

sign up an run a linequality test here http://www.dslreports.com/tools

post result

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Mad Mongo
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« Reply #2 on: January 31, 2005, 10:27:32 AM »
Test Loss Min
Latency Avg
Latency Max
Latency Pass
Fail
Simple ping loss check
target does not respond to ICMP ping  ping tests cancelled 
low bandwidth stream was not performed
medium bandwidth stream was not performed
your first hop ping was not performed
if you were pingable, cool graphs would appear here
From East Coast - USA to YOU
Hop Host LOSS Rcv Sent Best Avg Worst
0 166.90.136.33 0% 60 60 0.45 0.55 1.15
1 ge-6-0-0-53.gar4.NewYork1.Level3.net 0% 60 60 0.62 2.78 66.96
2 att-level3-oc48.NewYork1.Level3.net 0% 60 60 0.60 0.75 0.94
3 12.123.3.110 0% 60 60 1.35 1.93 7.03
4 tbr2-cl1.wswdc.ip.att.net 0% 60 60 8.04 8.75 17.85
5 tbr1-cl1.attga.ip.att.net 0% 60 60 22.07 22.52 24.41
6 gar5-p300.attga.ip.att.net 0% 60 60 21.44 21.54 21.68
7 12.118.120.90 0% 60 60 21.54 21.68 21.80
8 66.56.22.245 0% 60 60 22.93 23.16 27.44
9 c-66-56-23-3.atl.client2.attbi.com 0% 60 60 22.23 22.34 22.64
10 66.56.22.133 0% 60 60 22.41 22.65 23.51
11 ??? 100% 0 60 0.00 0.00 0.00
Pass: 
From West Coast - USA to YOU
Hop Host LOSS Rcv Sent Best Avg Worst
0 so1-0-0-2488M.ar1.CHI2.GBlx.net 0% 60 60 49.61 49.79 50.34
1 GBlx-gw.cgcil.ip.att.net 2% 59 60 49.88 50.00 51.06
2 tbr2-p014001.cgcil.ip.att.net 0% 60 60 50.71 51.09 52.99
3 tbr2-cl7.sl9mo.ip.att.net 0% 60 60 57.53 57.84 58.44
4 12.122.10.137 0% 60 60 68.58 69.05 71.13
5 gar5-p390.attga.ip.att.net 0% 60 60 67.70 67.78 68.05
6 12.118.120.90 0% 60 60 68.05 68.17 69.11
7 66.56.22.245 0% 60 60 68.37 68.50 69.09
8 c-66-56-23-3.atl.client2.attbi.com 0% 60 60 68.53 68.66 69.79
9 66.56.22.133 0% 60 60 68.74 68.99 70.09
10 ??? 100% 0 60 0.00 0.00
 
Seems pretty consistant with the drop at the same IP every time.. I Also went here http://visualroute.visualware.com/ and got these results which give a little more info I can understand like where each trace is coming/going from/to  hope this helps.

Mad Mongo

======================================================================================
=== VisualRoute (R) 2005 Server Edition (v9.0a) report on Jan 31, 2005 12:23:18 PM ===
======================================================================================

Report for xx.xx.xx.xxx [c-xx-xx-xx-xxx.atl.client2.attbi.com]

Analysis: IP packets are being lost past network  "Comcast Cable Communications Holdings, Inc CCCH3-3"
  at hop 12. VisualRoute cannot determine the next network at hop 13.

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| Hop | %Loss | IP Address     | Node Name                               | Location             | Tzone  | ms | Graph      | Network                                            |
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| 0   |       | 161.58.180.113 | WIN10115.visualware.com                 | *                    |        |    |            | Verio, Inc. VRIO-161-058                           |
| 1   |       | 161.58.176.129 | -                                       | ?Englewood, CO       |        | 0  | x          | Verio, Inc. VRIO-161-058                           |
| 2   |       | 161.58.156.140 | -                                       | ?Englewood, CO       |        | 26 | -x---      | Verio, Inc. VRIO-161-058                           |
| 3   |       | 129.250.28.206 | xe-1-2-0-3.r20.asbnva01.us.bb.verio.net | Ashburn, VA, USA     | -05:00 | 10 | x          | Verio, Inc. VRIO-129-250                           |
| 4   |       | 129.250.2.35   | p64-0-0-0.r21.asbnva01.us.bb.verio.net  | Ashburn, VA, USA     | -05:00 | 5  | x          | Verio, Inc. VRIO-129-250                           |
| 5   |       | 192.205.32.17  | verio-gw.n54ny.ip.att.net               | New York, NY, USA    | -05:00 | 52 | ---x------ | AT&T Bell Laboratories NETBLK-ATT                  |
| 6   |       | 12.123.9.86    | tbr2-p013901.wswdc.ip.att.net           | Washington, DC, USA  | -05:00 | 0  | x          | AT&T Worldnet Services ATTSVI-12-122-0-0           |
| 7   |       | 12.122.10.70   | tbr1-cl1.attga.ip.att.net               | Atlanta, GA, USA     | -05:00 | 16 | x          | AT&T Worldnet Services ATTSVI-12-122-0-0           |
| 8   |       | 12.123.21.137  | gar5-p300.attga.ip.att.net              | Atlanta, GA, USA     | -05:00 | 16 | x          | AT&T Worldnet Services ATTSVI-12-122-0-0           |
| 9   |       | 12.118.120.90  | -                                       | ?Morristown, NJ, USA | -05:00 | 15 | x          | AT&T Worldnet Services ATTSVI-12-112-0-0           |
| 10  |       | 66.56.22.245   | -                                       | ?Mt Laurel, NJ       |        | 16 | x          | Comcast Cable Communications Holdings, Inc CCCH3-3 |
| 11  |       | 66.56.23.3     | c-66-56-23-3.atl.client2.attbi.com      | ?Mt Laurel, NJ       |        | 16 | x          | Comcast Cable Communications Holdings, Inc CCCH3-3 |
| 12  |       | 66.56.22.133   | -                                       | ?Mt Laurel, NJ       |        | 15 | x          | Comcast Cable Communications Holdings, Inc CCCH3-3 |
| ... |       |                |                                         |                      |        |    |            |                                                    |
| ?   |       | xx.xx.xx.xxx   | c-xx-xx-xx-xxx.atl.client2.attbi.com    | ?Mt Laurel, NJ       |        |    |            | Comcast Cable Communications Holdings, Inc CCCH3-3 |
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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VanBuren
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« Reply #3 on: January 31, 2005, 11:02:20 AM »
when you get linequality result, copy the URL adress and paste it here so we can see it

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netmasta
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« Reply #4 on: January 31, 2005, 01:22:59 PM »
Also note this:
http://faq.Comcast.net/faq/answer.jsp?name=18225&cat=Connection&subcategory=1

 Upcoming Scheduled Maintenance

The following locations will be undergoing scheduled network maintenance from midnight (12:00AM) until noon (12:00PM) EST. During this twelve hour window please do not turn off your PC or cable modem as you will be unable to regain connectivity until the maintenance has been completed.

Cleveland, OH
1/27/05, Thu

Pittsburg, PA
1/27/05, Thu

Richmond, VA
1/30/05, Sun

Atlanta, GA
1/30/05, Sun
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Click here and here before posting speed related problems. These topics can be very useful.


Always remember, 'It could be worse'.
 
Mad Mongo
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« Reply #5 on: January 31, 2005, 03:46:38 PM »
Yea  I started having issues about a week back when they first started this maint BS. Now I have problems with stability.
Also after reading and searching every site I could find I Still cant figure out how to make myself Pingable with my rt311 router. I dont have 1/2 the menus they tell me to use.
I am stealth to all inquiries using Symantec Security Checker which is Good, but it dosn't allow me to run these tests.
Any Clues or advice is appreciated as always.
Thanks for all the time and efforts.

Mad Mongo
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VanBuren
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« Reply #6 on: January 31, 2005, 03:51:27 PM »
bypass the router and disable firewall during test, or config your firewall to allow ICMP traffic.

then you can see if the problem is at your ISP net...

also make a speedtest without router and see if you go faster without it

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Mad Mongo
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« Reply #7 on: February 03, 2005, 07:21:28 AM »
ok removed my router and spoofed my mac addy so I could get to the net. Here are the results of the test. Hope I did this right

Mad Mongo


Test Loss Min
Latency Avg
Latency Max
Latency Pass
Fail
Simple ping loss check
10secs of 40byte packets 2 per second  0% loss  29.0ms  30.7ms  43.9ms 
pass
low bandwidth stream
10secs of 56k/bit ping stream 512byte packets  0% loss  30.9ms  32.8ms  48.5ms 
pass
medium bandwidth stream
10secs of 128k/bit ping stream 512byte packets  0% loss  30.8ms  33.0ms  49.9ms 
pass
your first hop ping
stream of 40byte pings to 66.56.22.133  0% loss  21.6ms  You are 7ms
to your first hop!
pass
ping plot from 'ec'
 
ping plot from 'wc'
 
From East Coast - USA to YOU
Hop Host LOSS Rcv Sent Best Avg Worst
0 166.90.136.33 0% 60 60 0.40 0.52 0.63
1 ge-7-0-0-52.gar4.NewYork1.Level3.net 0% 60 60 0.62 3.21 102.84
2 att-level3-oc48.NewYork1.Level3.net 0% 60 60 0.60 0.69 0.80
3 12.123.3.110 0% 60 60 1.29 1.81 3.98
4 tbr2-cl1.wswdc.ip.att.net 0% 60 60 8.09 8.53 13.05
5 tbr1-cl1.attga.ip.att.net 0% 60 60 21.27 21.79 23.56
6 gar5-p300.attga.ip.att.net 0% 60 60 20.59 20.72 21.39
7 12.118.120.90 0% 60 60 20.72 20.85 20.98
8 66.56.22.245 0% 60 60 22.09 22.22 22.36
9 c-66-56-23-3.atl.client2.attbi.com 0% 60 60 21.39 21.51 21.69
10 66.56.22.133 0% 60 60 21.65 21.89 25.96
11 c-66-56-3-94.atl.client2.attbi.com 7% 56 60 31.03 32.98 62.50
Fail: 
From West Coast - USA to YOU
Hop Host LOSS Rcv Sent Best Avg Worst
0 so1-0-0-2488M.ar1.CHI2.GBlx.net 7% 56 60 49.62 49.82 50.91
1 GBlx-gw.cgcil.ip.att.net 2% 59 60 49.86 50.01 50.18
2 tbr2-p014001.cgcil.ip.att.net 2% 59 60 50.71 51.20 53.43
3 tbr2-cl7.sl9mo.ip.att.net 0% 60 60 57.47 57.89 59.82
4 12.122.10.137 0% 60 60 68.71 69.38 73.81
5 gar5-p390.attga.ip.att.net 0% 60 60 67.81 68.00 68.23
6 12.118.120.90 2% 59 60 68.16 68.35 68.59
7 66.56.22.245 4% 58 60 68.53 68.69 68.87
8 c-66-56-23-3.atl.client2.attbi.com 0% 60 60 68.66 68.83 69.13
9 66.56.22.133 0% 60 60 68.89 69.14 69.69
10 c-66-56-3-94.atl.client2.attbi.com 2% 59 60 78.45 79.97 85.13
Fail: 
 
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Mad Mongo
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« Reply #8 on: February 08, 2005, 12:05:17 PM »
ok Finally got a confirmed answer through the techies at Comcast. Seems a firmware update with the new upgrades they have been doing to their system is NOT compatable with the older Toshiba and a few of the original RoafdRunner Modems. Once the newer modem was installed I started getting... well  See for yourself..
::::::::::.. Download Stats ..::::::::::
Connection is:: 4212 Kbps about 4.2 Mbps (tested with 5983 KB)
Download Speed is:: 514 kB/s
Tested From:: http://www.testmy.net/
Test Time:: Tue Feb 8 14:04:59 EST 2005
Bottom Line:: 75X faster than 56K 1MB download in 1.99 sec
Validation Link:: http://testmy.net/id-70NV3YMW2
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VanBuren
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« Reply #9 on: February 08, 2005, 12:16:29 PM »
nice speed  Very Happy

i will keep this in my RAM if i see this problem again

VanBuren Smile
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