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Contributor
Wreave007
Posts: 6
Registered: ‎06-09-2012

Lag spikes every night

Every night for the past 2 weeks: http://imgur.com/F1F1s

 

I've had a technician visit my site and say everything on my end is working fine and that the problem is somewhere else. That was a few days ago and the problem persists.

Contributor
Wreave007
Posts: 6
Registered: ‎06-09-2012

Re: Lag spikes every night

Any ideas? Happens every night from 6-12pm. Sometimes starts as late as 7pm or ends as early as 11pm. All other times of the day I have below 50ms ping.

Contributor
Homeyman76
Posts: 13
Registered: ‎05-21-2012

Re: Lag spikes every night

Me too Its been happening for about 5-7 days now. Always starts around 6-9pm CST

 

Here are my modem logs:

 

Any ideas:

 

Downstream Bonded Channels Channel Lock Status Modulation Channel ID Frequency Power SNR

Correctables Uncorrectables

1 Locked QAM256 4 669000000 Hz 2.7 dBmV 38.6 dB 4036 0

2 Locked QAM256 1 651000000 Hz 3.9 dBmV 38.6 dB 3725 54

3 Locked QAM256 2 657000000 Hz 3.5 dBmV 38.6 dB 3840 27

4 Locked QAM256 3 663000000 Hz 3.3 dBmV 38.6 dB 3907 82

5 Locked QAM256 5 675000000 Hz 3.3 dBmV 38.7 dB 3883 0

6 Locked QAM256 6 681000000 Hz 3.6 dBmV 39.2 dB 1440 0

7 Locked QAM256 7 687000000 Hz 3.3 dBmV 39.1 dB 1581 0

8 Locked QAM256 8 693000000 Hz 3.8 dBmV 39.1 dB 1807 0

 

Upstream Bonded Channels Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power

1 Locked ATDMA 5 5120 Ksym/sec 29500000 Hz 51.0 dBmV

2 Locked ATDMA 4 5120 Ksym/sec 36400000 Hz 51.0 dBmV

3 Locked TDMA 6 5120 Ksym/sec 24200000 Hz 51.0 dBmV

4 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV

 

Total Correctables Total Uncorrectables

24219 163

Contributor
Zerth
Posts: 14
Registered: ‎06-09-2012

Re: Lag spikes every night

I've had this issue for the past 2 weeks now. It will go to trash for a few hours a day, last week, it would be perfect during the day and around 7pm till about 3am it would go to trash and couldn't even load a search from google.com. This week its working from 11pm till about 7am, then it goes to trash and is unusable all day. I called comcast this evening and was told they are repairing an fiber optic cable, when I called the week before that when the problem started I was told the same exact thing. It constantly spikes, and doesn't have a steady ping during certains of the day, and those times seem to be random now.

Contributor
Posts: 11
Registered: ‎06-14-2009

Re: Lag spikes every night

I think it is called - "school is out" for the summer...  happens every summer since I have had comcast...

Bronze Problem Solver
Jim721
Posts: 2,843
Registered: ‎12-05-2010

Re: Lag spikes every night

Well then maybe Comcast should upgrade there system to handle it. There is no reason for this in 2012.

Contributor
Wreave007
Posts: 6
Registered: ‎06-09-2012

Re: Lag spikes every night

Right, school is out. Yet my friend 2 miles down the road in the same neighborhood with *competitors cable company* has no problems. Basically he can continue to game while I just have to wait it out every night for hours. Gettingoldbro.

Contributor
Wreave007
Posts: 6
Registered: ‎06-09-2012

Re: Lag spikes every night

Oh and tonight it started at 4pm... so my connection with be garbage for 8 hours this wonderfull Sunday evening.

Cable Expert
i-am-nerdburg
Posts: 11,209
Registered: ‎06-27-2009

Re: Lag spikes every night

[ Edited ]

Tracroute?

 

Windows 7, Vista or XP: 

Click Start->Run and type cmd and press Enter. This will open a black DOS window. When open, type tracert www.comcast.net and hit enter. When it is finished, you will see a "Trace complete" message.

 

Mac OSX users:

Open the Applications->Utilities->Network Utility and select the Traceroute tab. Enter an address such as www.comcast.net and start the trace. When completed, copy and paste the results to your forum post using normal copy and paste methods. 

 

Connection Expert
EG
Posts: 42,453
Registered: ‎12-24-2003

Re: Lag spikes every night

FWIW, check his Pingplotter trace in post # 1.

Cable Expert
i-am-nerdburg
Posts: 11,209
Registered: ‎06-27-2009

Re: Lag spikes every night

Connection Expert
EG
Posts: 42,453
Registered: ‎12-24-2003

Re: Lag spikes every night

Possible local capacity / congestion issue.

Contributor
Zerth
Posts: 14
Registered: ‎06-09-2012

Re: Lag spikes every night

Find it weird how yesterday I had zero lag, today was running fine, 2pm hits and bam lag spikes like crazy can't even stay connected for more than 2 seconds on world of warcraft. latency jumps from 70 to 2600 every few seconds and spikes hard till I dc. Please upgrade the servers give a powerboost or something, this is becoming annoying.

Cable Expert
i-am-nerdburg
Posts: 11,209
Registered: ‎06-27-2009

Re: Lag spikes every night


Zerth wrote:

 world of warcraft. latency jumps from 70 to 2600


That has nothing to do with Comcast and everything to do with Blizzard.

Contributor
Zerth
Posts: 14
Registered: ‎06-09-2012

Re: Lag spikes every night

[ Edited ]

Then why is my browser beyond slow? Google takes forever to load when I search something. I'm just saying comcast keeps saying its a fiber optic cable, and its been 3 weeks, Its like this for a couple hours every single day. Its also happening on other games that aren't on blizzard servers. League of legends, counter strike source, battle field 3, also causes ventrlo, and skype to randomly disconnect and or lag.

Contributor
Wreave007
Posts: 6
Registered: ‎06-09-2012

Re: Lag spikes every night

Monday Evening 6/11/2012: http://imgur.com/QXPea

 

A typical night of latency. Starts at 6pm, ends at about 11:15pm.

Contributor
Homeyman76
Posts: 13
Registered: ‎05-21-2012

Re: Lag spikes every night

[ Edited ]

Started at 8pm CST

http://www.pingtest.net/result/64536401.png

 

Had a tech out to add an amplifier-splitter but still no go. I am now going to reschedule a tech to check outside lines.

 

 

Very fustrating. going on 2 weeks.

 

Contributor
Zerth
Posts: 14
Registered: ‎06-09-2012

Re: Lag spikes every night

[ Edited ]

Ok so I found out last night when my internet became really really slow, that my bandwidth dropped to a really really slow speed, and was like that for about 6 hours then around 2am my bandwidth speed went back up and my internet speed increased, any self fixes that can be offered to help with this issue please? I'm currently on a Linksys CM100 Cable modem, because I've switched out modems trying to fix this issue that has been going on for weeks now.

Downstream Channel

Lock Status Operational

Modulation 256QAM

Channel ID 205

Provisioned Rare Unlimitied

Symbol Rate 41879.195 Ksym/sec

Downstream Power -10.0 dBmV

SNR 37.0 dB

Upstream Channel

Lock Status Operational

Modulation 64QAM

Channel ID 1

Provisioned Rate unlimited

Symbol rate 5120 Ksym/sec

Upstream Power 48.0 dBmV

 

  
Regular Contributor
Posts: 30
Registered: ‎04-13-2005

Re: Lag spikes every night

[ Edited ]

@zerth  your downstream power is at the limit... sounds like you need them(comcast) to adjust it a bit closer to zero

New Visitor
injenu1
Posts: 4
Registered: ‎07-25-2012

Re: Lag spikes every night

This is exactly the same thing that has been happening to me. I tried to cancel my service but the lady begged me to have another tech come out and see if they can fix my problem.  It's exactly as the op's pingplotter looks like, low pings for about a minute then 5000ms.. Comcast seems only to care if you're "online", which is literally what the first tech said.

 

Going to give them another week to address this, then i'll have to go back to the dreaded AT&T uverse.  A 100ms speed that's steady is much better than a 23ms to 2300ms rollercoaster.

 

Regular Contributor
Posts: 55
Registered: ‎09-11-2003

Re: Lag spikes every night

Can anyone please explain what's going on with my connection here?

 

  1    <1 ms    <1 ms    <1 ms  Router [192.168.1.1]
  2     *        *        *     Request timed out.
  3    11 ms    13 ms     9 ms  68.85.77.17
  4    32 ms    11 ms    14 ms  xe-6-1-3-0-ar03.plainfield.nj.panjde.comcast.net
 [68.85.63.81]
  5    16 ms    34 ms    16 ms  pos-3-9-0-0-cr01.newyork.ny.ibone.comcast.net [6
8.86.95.181]
  6    49 ms    16 ms    16 ms  pos-0-4-0-0-pe01.111eighthave.ny.ibone.comcast.n
et [68.86.85.22]
  7    32 ms    13 ms    14 ms  192.205.37.33
  8    97 ms    95 ms    95 ms  cr1.n54ny.ip.att.net [12.122.131.86]
  9    95 ms    96 ms    97 ms  cr2.cgcil.ip.att.net [12.122.1.2]
 10    95 ms    99 ms    97 ms  cr1.cgcil.ip.att.net [12.122.2.53]
 11    93 ms    95 ms    96 ms  cr1.sffca.ip.att.net [12.122.4.121]
 12    95 ms    93 ms    95 ms  cr1.la2ca.ip.att.net [12.122.3.122]
 13   114 ms    93 ms    95 ms  cr2.la2ca.ip.att.net [12.122.2.166]
 14   109 ms    93 ms    93 ms  gar29.la2ca.ip.att.net [12.122.129.241]
 15    92 ms    93 ms    91 ms  12-122-254-238.attens.net [12.122.254.238]
 16    93 ms    95 ms    93 ms  mdf001c7613r0004-gig-10-1.lax1.attens.net [12.12
9.193.250]
 17     *        *        *     Request timed out.

 

New Visitor
Wolfee77
Posts: 2
Registered: ‎06-09-2013

Re: Lag spikes every night

Same problem here. After 6 or so ping alternates between 32 and 6k. I've been on multiple sites, games, and devices with the same result.

New Visitor
Wolfee77
Posts: 2
Registered: ‎06-09-2013

Re: Lag spikes every night

traceroute to comcast.net (162.150.0.50), 64 hops max, 52 byte packets

 1  192.168.0.1 (192.168.0.1)  75.937 ms  4.219 ms  4.864 ms

 2  * 192.168.1.1 (192.168.1.1)  18.595 ms  8.611 ms

 3  * 50.131.136.1 (50.131.136.1)  47.483 ms *

 4  * te-9-2-ur02.petaluma.ca.sfba.comcast.net (68.85.100.241)  44.219 ms *

 5  * te-8-1-ur05.rohnertpr.ca.sfba.comcast.net (68.87.192.158)  38.883 ms  508.834 ms

 6  * te-1-0-0-3-ar01.sfsutro.ca.sfba.comcast.net (68.87.226.2)  30.150 ms *

 7  he-3-8-0-0-cr01.sanjose.ca.ibone.comcast.net (68.86.94.85)  55.878 ms *  20.979 ms

 8  he-0-13-0-0-cr01.denverqwest.co.ibone.comcast.net (68.86.89.130)  47.293 ms *  63.262 ms

 9  he-3-12-0-0-cr01.denver.co.ibone.comcast.net (68.86.89.33)  43.940 ms  50.965 ms *

10  he-5-13-0-0-cr01.350ecermak.il.ibone.comcast.net (68.86.85.245)  71.715 ms  67.767 ms  84.041 ms

11  pos-0-3-0-0-ar02.northlake.il.ndcchgo.comcast.net (68.86.94.182)  68.210 ms  65.666 ms  67.871 ms

12  te-0-3-0-0-ur04.northlake.il.ndcchgo.comcast.net (69.139.217.222)  64.040 ms  75.196 ms  64.745 ms

13  ge-0-1-0-0-ur03-d.northlake.il.ndcchgo.comcast.net (69.139.236.1)  67.241 ms  70.500 ms  64.224 ms

14  * * *

15  * * *

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51  * * *

52  * ge-0-1-0-0-ur03-d.northlake.il.ndcchgo.comcast.net (69.139.236.1)  68.299 ms !X *

 

Not sure why it cut out for such a long time before coming back, but I took this during a spike.

 

Bronze Problem Solver
Jim721
Posts: 2,843
Registered: ‎12-05-2010

Re: Lag spikes every night

Not really anything we can do here in this forum for the issue your having maybe a call to comcast might be a better idea.

Bronze Star Contributor
Lunkwill
Posts: 489
Registered: ‎11-20-2003

Re: Lag spikes every night


Wolfee77 wrote:

traceroute to comcast.net (162.150.0.50), 64 hops max, 52 byte packets

 

 2  * 192.168.1.1 (192.168.1.1)  18.595 ms  8.611 ms

 3  * 50.131.136.1 (50.131.136.1)  47.483 ms *

 4  * te-9-2-ur02.petaluma.ca.sfba.comcast.net (68.85.100.241)  44.219 ms *

 5  * te-8-1-ur05.rohnertpr.ca.sfba.comcast.net (68.87.192.158)  38.883 ms  508.834 ms

 6  * te-1-0-0-3-ar01.sfsutro.ca.sfba.comcast.net (68.87.226.2)  30.150 ms *

 

Did you check your router's firewall settings? The traceroute returns from your router and the Comcast routers in Petaluma and Rohnert Park only have one or two returns. The long traceroute dropout between hop 13 and 52 is probably just a filter. This could also be a signal strength issue between your modem and Comcast. BTW - you may want to put this into another thread, seeing that this one is a year old and will probably be locked by the mods.

 

Contributor
Posts: 21
Registered: ‎03-23-2009

Re: Lag spikes every night

This has been happening to us for months. Comcast has sent multiple techs over and have found nothing, we ruled everything out except Comcast.

New Visitor
Posts: 3
Registered: ‎04-06-2009

Re: Lag spikes every night

Same here.

 

http://i.imgur.com/sIs6M4p.png

 

This IS Comcast at fault. You'd think they would investigate with ALL these complaints of latency during peak times, but no, nothing so far.