Search:  

 
 
   All ForumsHot TopicsGallery






how-to block ads


 
Forums » US Cable Support » Comcast » Comcast HSI » [Connectivity] Major Slow Down in San Jose, CA?
Search Topic:
Uniqs:
1705
Share Topic:
RSS topic:
toggle:
flat / full
normal / watch
Posting:
Post a:
Post a:
[Connectivity] Missing web sites ? »
« [Connectivity] It's Comcastic!  
page: 1 · 2 · 3
AuthorAll Replies


randalla

join:2004-04-15
South San Francisco, CA


1 edit
reply to dnt408
Re: [Connectivity] Major Slow Down in San Jose, CA?

Look at this tracert at 8:58 PM from South San Francisco.
This really stinks.

tracert www.comcast.com

Tracing route to www.comcast.com [164.109.28.3]
over a maximum of 30 hops:

1 1 ms 1 ms 1 ms 192.168.0.1
2 * * * Request timed out.
3 22 ms 8 ms 9 ms 68.87.196.21
4 11 ms 8 ms 9 ms 68.87.192.6
5 9 ms 10 ms 32 ms 68.87.195.42
6 150 ms 166 ms 163 ms 12.117.240.17
7 180 ms 178 ms 177 ms tbr2032701.sffca.ip.att.net [12.122.82.2]
8 219 ms 224 ms 220 ms 12.122.81.137
9 190 ms 190 ms 194 ms att-gw.ashburn.eli.net [192.205.32.74]
10 202 ms 201 ms 227 ms 0.so-2-0-0.XL2.SCL2.ALTER.NET [152.63.57.102]
11 303 ms 299 ms 291 ms 0.so-6-0-0.XL2.DCA6.ALTER.NET [152.63.38.74]
12 196 ms 198 ms 189 ms 0.so-7-0-0.GW6.DCA6.ALTER.NET [152.63.41.225]
13 274 ms 274 ms 276 ms digex-gw.customer.alter.net [157.130.214.102]
14 268 ms 273 ms 266 ms vlan39.dca2a-fdisa-sw1-msfc1.netsrv.digex.net [1
64.109.3.149]
15 220 ms 224 ms 243 ms 164.109.31.219
16 232 ms 236 ms 235 ms 164.109.28.3

Trace complete.

And speed tests during day I get 4.6 to 5 Mbps. At night 1.2 to 1.6 Mbps.


dka69

@comcast.net

reply to dnt408
Re: [Connectivity] Major Slow Down in San Jose, CA

My connection has been sucking for the last two weeks. Calls to comcast are always answered by a very polite person. Unfortunately the technician is not helpful. Escalating the issue generally falls on deaf ears. They must know something is going on but are informed not to admit anything. Sad..

tracert -d www.yahoo.com

Tracing route to www.yahoo.akadns.net [66.94.230.36]
over a maximum of 30 hops:

1 1 ms 1 ms 1 ms 192.168.1.1
2 * * * Request timed out.
3 11 ms 16 ms 27 ms 68.87.198.1
4 14 ms 11 ms 12 ms 68.87.192.53
5 13 ms 10 ms 27 ms 68.87.192.49
6 13 ms 8 ms 11 ms 68.87.192.41
7 12 ms 12 ms 11 ms 68.87.192.37
8 11 ms 30 ms 26 ms 68.87.195.46
9 198 ms 192 ms 199 ms 12.127.32.33
10 225 ms 236 ms 244 ms 12.123.13.177
11 242 ms 242 ms 236 ms 12.122.80.57
12 198 ms 198 ms 203 ms 192.205.32.206
13 338 ms 316 ms 317 ms 4.68.123.139
14 243 ms 254 ms 253 ms 64.152.69.30
15 188 ms 159 ms 147 ms 66.218.82.219
16 294 ms 269 ms 261 ms 66.94.230.36

Trace complete.

mandms7

join:2005-10-19
Livermore, CA
I'm in Livermore, CA and my speeds suck just as bad. Haven't tried it in the morning, but every night for the past week or so has been extremely slow.

dadur

join:2005-04-07

reply to dka69
Same problem here near the SF/Daly City border (94132):

C:\>tracert www.comcast.net

Tracing route to www.comcast.net [204.127.195.15]
over a maximum of 30 hops:

1 1 ms 1 ms * 192.168.111.1
2 * * * Request timed out.
3 29 ms 18 ms 29 ms 68.87.197.193
4 11 ms 12 ms 24 ms 68.87.192.213
5 14 ms 22 ms 15 ms 68.87.192.205
6 8 ms 51 ms 14 ms 68.87.192.201
7 46 ms 26 ms 25 ms 68.87.192.197
8 11 ms 32 ms 12 ms 68.87.195.58
9 328 ms 289 ms 283 ms 12.117.240.17 <= Problem starts here
10 256 ms 294 ms 247 ms tbr2032701.sffca.ip.att.net [12.122.82.2]
11 250 ms 214 ms 201 ms 12.123.13.178
12 303 ms 303 ms 301 ms idf22-gsr12-1-pos-7-0.rwc1.attens.net [12.122.255.218]
13 285 ms 312 ms 279 ms rwcsbix11-1-4.attbi.com [63.241.85.234]
14 * * * Request timed out.
15 312 ms 288 ms 323 ms www.comcast.net [204.127.195.15]

Trace complete.

There are already two threads on the Comcast support forums about this.

tweekah

join:2004-06-02
San Leandro, CA

Horrible, every night for the last few days.

Tracing route to www.l.google.com [64.233.187.99]
over a maximum of 30 hops:

1 * * * Request timed out.
2 14 ms 8 ms 11 ms 68.87.196.129
3 10 ms 12 ms 10 ms 68.87.192.86
4 * 11 ms 9 ms 68.87.192.90
5 * 13 ms 16 ms 68.87.195.22
6 234 ms 207 ms 224 ms 12.117.240.13
7 93 ms 91 ms 85 ms tbr1011001.sffca.ip.att.net [12.122.82.74]
8 * 208 ms 201 ms 12.123.12.57
9 298 ms ^C


Britboy1

@comcast.net

  yep, same here (discovery Bay/Livermore)

tracert www.comcast.net

Tracing route to www.comcast.net [204.127.195.15]
over a maximum of 30 hops:

1 7 ms 7 ms 5 ms 10.150.144.1
2 17 ms 7 ms 7 ms 68.87.197.37
3 8 ms 7 ms 7 ms 68.87.192.105
4 7 ms 7 ms 12 ms 68.87.199.110
5 7 ms 7 ms 7 ms 68.87.192.97
6 9 ms 10 ms 23 ms 68.87.192.93
7 9 ms 9 ms 9 ms 68.87.195.46
8 344 ms 343 ms 341 ms 12.117.240.5
9 170 ms 171 ms 189 ms [12.122.82.2]
10 300 ms 307 ms 316 ms 12.123.13.178
11 206 ms 208 ms 219 ms [12.122.25
5.218]
12 276 ms 275 ms 286 ms [63.241.85.238]
13 * * * Request timed out.
14 * * * Request timed out.
15 338 ms 348 ms 340 ms [204.127.195.15]

dhavasy

join:2002-05-14
San Jose, CA

reply to dnt408
Re: [Connectivity] Major Slow Down in San Jose, CA?

Well it's pretty obvious we're all having the exact same problem and we can all pinpoint it to the hop that starts with 12.xxx. Is this a bad router or something that is getting abused at night during primetime?

Now that we've pinpointed the problem area, how do we actually get comcast to do something? I had a tech out today who was nice but not much help. He said he'd report the problem and hopefully in the next 10 days they'd monitor it after hours. But then even once they've found the problem he's not sure what they can do about it. He would not give me anyone else to call so i'm basically stuck just hoping they notice it.

Have the rest of you reported the problem? Any ideas how we can get some response from them?

Dave

The Way Out

join:2003-01-20
Re: [Connectivity] Major Slow Down in San Jose, CA

Comcast is over capacity in the Bay Area. Users are getting speed increases, but Comcast isn't upgrading their uplinks at the same rate. You're experiencing a virtual traffic jam during peak usage hours.

dubb

join:2005-10-14
San Jose, CA
reply to dnt408
Re: [Connectivity] Major Slow Down in San Jose, CA?

Ironic how we live in the high tech capitol of the world... I would've thought silicon valley might have fiber optic lines with amazing broadband speeds, needless to say - I'm highly disappointed. Thinking of dropping Comcast to go back with SBC...

blacey

join:2000-10-26
San Mateo, CA

reply to dnt408

WAN Traffic

Ping latency to Comcast.net
This is what I have experienced in Foster City. Notice that my WAN traffic is low but the last three nights, pings to comcast.net spike between 8:00 PM and Midnight.


comcast can suck my

@comcast.net

Re: [Connectivity] Major Slow Down in San Jose, CA

haha most of u people have what max of 3-4 weeks with these unbearable speeds from comcast?....listen to this 4 fuckin months wow i call comcast have 4 techs within 3 weeks and 1 of them says i can't find anything i'll give u another modem...doesnt solve the problem, the second one says i can't find anything wrong you want a modem change and i told them to give me their motorola sb5120 and still nothing 3rd tech tells me that it has something to do with my apt cable lines...and im liek fuck it let them say what they want to but i ask him tho how is it possible that when i call comcast customer support they tell me that they see the ping times on my modem and have proof yet when techs come they say they cannot go any further or else they will have to do a surcharge of 49.99 because they have no proof and tell me that comcast techs and comcast customer service are two different parts of the company...only word that comes to mind is WOW. so i was thinking recently how could i have such a retard to listen to that bullshit if a cable line was bad in the apt why do i get great ping in the morning while im in class so i call them back for a escalate in my problem from a regular tech to a line tech who tests the line instead of my equipment. now some lady from comcast calls me while im in class and leaves a voicemail saying they didnt send a line tech because it is a problem that has to do with where i live and the cable lines in my apt. btw i live on 4th and william area code 95112.

dhavasy

join:2002-05-14
San Jose, CA

reply to dnt408
Yah i really fear that this problem will never be solved because comcast is just too big and cannot handle individual problems anymore.

I'm ordering DSL and testing it for a month to see if it's better because i really dont even know how to approach the comcast issue.

Are there ANY comcast techs that browse these forums who can give us advice here???


dka69

@phoenix.com

This is clearly an issue with their overall avaliable bandwidth leaving their network. My thought is marketing keeps increasing the avaliable bandwidth to each individual user but Comcast's network cannot handle it and thus it falls over during peak times. This *must be* a known issue within Comcast's network team. However the technical support technicians are probably either informed not to say anything or are unaware of the problem.

I do understand how long it takes to get new services ordered through AT&T so therefore I do not falt them on this one. However I have seen this problem for 2 - 3 weeks now and it will either get resolved next week or Comcast is stringing their customers along.

kegwin
Premium
join:2005-10-12
Davis, CA

I am having this problem a little east of you guys in Davis. I talked to an engineer and they told me that they are aware of the problem. I called up Comcast today and told them I want a credit on my account for this month. They put it through. Money talks, tell them you are not going to pay for a service that does not exist.


dadkins
Can you do Blu?
Premium,MVM
join:2003-09-26
Hercules, CA
·Comcast

reply to dka69
said by dka69 :

This is clearly an issue with their overall avaliable bandwidth leaving their network. My thought is marketing keeps increasing the avaliable bandwidth to each individual user but Comcast's network cannot handle it and thus it falls over during peak times. This *must be* a known issue within Comcast's network team. However the technical support technicians are probably either informed not to say anything or are unaware of the problem.

I do understand how long it takes to get new services ordered through AT&T so therefore I do not falt them on this one. However I have seen this problem for 2 - 3 weeks now and it will either get resolved next week or Comcast is stringing their customers along.
By "their network" do you mean all of Comcast?
Would you consider 8:37 PM "Peak Time"?
I won't post a speed test unless I am asked, but I can assure you my speeds are fine here on Comcast.
--
Think outside the Fox... Opera

NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
·Pacific Bell - SBC


1 edit
reply to XTCBoY2K
said by XTCBoY2K See Profile :

The problem is the second hop. My second hop has been down for several weeks now.
Do you mean the hop that fails? Like everybody else's trace routes show? I am told that it's your CMTS, and that is is configured to not respond to ICMP packets; no ping.
10/21/05 01:36:12 Slow traceroute Ikuko
Trace Ikuko (67.171.201.211) ...
192.168.102.1 RTT: 0ms TTL: 64 (Chihiro ok)
192.168.0.1 RTT: 41ms TTL:170 (Suzuka ok)
71.132.15.254 RTT: 28ms TTL:170 (adsl-71-132-15-254.dsl.sntc01.pacbell.net ok)
63.203.51.65 RTT: 27ms TTL:170 (dist1-vlan60.sntc01.pbi.net ok)
64.161.1.145 RTT: 28ms TTL:170 (bb1-g8-0-1.sntcca.sbcglobal.net ok)
151.164.40.170 RTT: 27ms TTL:170 (bb2-p6-0.sntc01.sbcglobal.net ok)
151.164.241.197 RTT: 27ms TTL:170 (core2-p6-2.crscca.sbcglobal.net ok)
151.164.40.62 RTT: 55ms TTL:170 (bb1-p8-0.crscca.sbcglobal.net ok)
151.164.242.230 RTT: 27ms TTL:170 (ex2-p14-0.eqsjca.sbcglobal.net ok)
151.164.191.201 RTT: 28ms TTL:170 (ex1-p9-0.eqsjca.sbcglobal.net ok)
144.223.242.81 RTT: 41ms TTL:170 (sl-st20-sj-0-0.sprintlink.net ok)
144.232.9.67 RTT: 27ms TTL:170 (sl-st21-sj-1-0.sprintlink.net ok)
144.232.9.206 RTT: 55ms TTL:170 (No rDNS)
12.123.13.193 RTT: 83ms TTL:170 (tbr2-p012201.sffca.ip.att.net bogus rDNS: host not found [authoritative])
12.122.12.114 RTT: 55ms TTL:170 (tbr1-cb10.st6wa.ip.att.net bogus rDNS: host not found [authoritative])
12.123.44.145 RTT: 55ms TTL:170 (gar3-p360.st6wa.ip.att.net bogus rDNS: host not found [authoritative])
12.119.199.22 RTT: 69ms TTL:170 (No rDNS)
68.87.216.6 RTT: 55ms TTL:170 (No rDNS)
68.87.216.57 RTT: 55ms TTL:170 (No rDNS)
* * * failed
67.171.201.211 RTT: 68ms TTL: 41 (Ikuko ok)
That is looking into a Comcast user's IP address. Their CMTS doesn't respond from the outside, either.

I noticed quite a few are posting tracer routes going through Level3. I'd kind of take those with a grain of salt, given the peering wars going on.

I also wonder what will go on with the AT&T routers. With SBC poised to buy AT&T, how long will any peering and transit agreements hold?

Comcast may be adding capacity to take up any slack from the AT&T buyout; who knows? I also have no idea about the affect of Comcast lighting up large swaths of the south S.F. Bay Area. Until about nine months ago, Comcast was not available in my neighborhood. That was when they "lit up" the line behind my house. Black sheath with red stripe; fiber on the poles? Could they have added customers in west San José faster than they added capacity, and are now playing "catch up"?

Just rambling. I was suffering serious DSL lag, and decreased down sync rate; worried that the copper was going bad, and I'd maybe have to go over to Comcast. Now that the cable maintenance guy fixed the open on the "ring" side of the loop, all is well again. Took them 48 hours to fix it, though, because of the "protocol". Service techs have to wave their wands over pole connections and cross-connect boxes before they bring in cable maintenance.

--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum


dka69

@phoenix.com

reply to dadkins
I am implying "their network" in terms of the Comcast's California network. In terms of the problems myself and other individuals with Comcast in California are experiencing are generally during peak hours. Yes, I do consider 8:37 PM apart of Comcast's peak hours. I am sure the majority of Comcast's users base uses their connections in the evenings since the majority of the people out there do have jobs. Your welcome to post your speed results but I would prefer you send your latency results via a traceroute or ping to major websites (google, yahoo, etc) at 8:40PM. If your not in California then don't bother.

Thanks..


dadkins
Can you do Blu?
Premium,MVM
join:2003-09-26
Hercules, CA
·Comcast


1 edit
Hercules, CA - San Francisco Bay Area - East Bay.
Speed tests will likely piss off a few people, tracerts will depress many.

Remind me this evening at the time of your choosing, I'll be more than happy to provide the above stats.

To all others, remember... he asked!
--
Think outside the Fox... Opera

NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
·Pacific Bell - SBC


1 edit
reply to dka69
said by dka69 :

If your not in California then don't bother.
Never been anywhere between Richmond and Martinez, I guess.
--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum


wrenchmonkey
Premium
join:2002-05-04
Sacramento, CA
reply to dnt408
Re: [Connectivity] Major Slow Down in San Jose, CA?

SOS here in East Sac too. Comcrap sucks.
Forums » US Cable Support » Comcast » Comcast HSI[Connectivity] Missing web sites ? »
« [Connectivity] It's Comcastic!  
page: 1 · 2 · 3


Thursday, 26-Nov 18:55:13 Terms of Use | Privacy Policy | Hosting by www.nac.net - DSL,Hosting & Co-lo | feedback | contact
over 10 years online! © 1999-2009 dslreports.com.
page compression OFF
Most commented news this week
· [109] New AT&T Ad Campaign Hits Back At Verizon
· [107] Time Warner Cable Fires Broadside At Broadcasters
· [95] Apple Joins AT&T Verizon Snark Fest
· [87] New Bill Takes Aim At Higher Verizon ETFs
· [69] TiVo Sees Record Customer Losses
· [61] In-Flight Internet Headed For Bumpy Landing?
· [44] Thanksgiving Open Thread
· [37] ICANN Slams DNS Redirection
· [34] Senators Want ACTA Made Public
· [34] Despite Billions In USF Fees, U.S. Libraries Lack Bandwidth
Most people now reading
· I'll Just Unplug That... [No, I Will Not Fix Your #@$!! Computer]
· So we need a legitimate reason to use a lot of bandwidth? [TekSavvy]
· 3.x Feral Druid - Bear Tanking Guide [World of Warcraft]
· Connecting to Google Voice Via SIP [VOIP Tech Chat]
· What is the spell hit cap for a lvl 80 full arcane spec mage [World of Warcraft]
· HOW-TO: QoS and Tomato (fixes "choppy voice") [MagicJack]
· Slow speeds in the evenings [TekSavvy]
· IPComms Free DIDs now with sip registration maybe?? [VOIP Tech Chat]
· [ PVP] 3.2 DK PvP D/W Spec... [World of Warcraft]
· Whats the big deal about being "Old School"....? [World of Warcraft]