Jmartz
join:2000-07-20
Tenafly, NJ
| Connection keeps dropping
I've had to reboot my modem twice in the last 2 hours because the modem seems to just stop responding. The error log shows:
030712190726 7-Information H501.6 HFC: TRC SYNC Recovery OK
030712190725 3-Critical H501.4 HFC: LOST TRC SYNC- trying to recover
030712190725 7-Information H501.12 HFC: FEC LOCK recovery OK
030712190725 7-Information H501.15 HFC:FEC LOCK recovery OK
030712190724 3-Critical H501.16 HFC: FEC LOCK recovery failed
Signals:
Frequency 603000000 Hz Locked
Signal to Noise Ratio 35 dB
QAM 64
Network Access Control Object ON
Power Level -7 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading
HFC MAC Address 00:0B:06:36:43:0C
Channel ID 6
Frequency 25008000 Hz Ranged
Ranging Service ID 2908
Symbol Rate 2.560 Msym/s
Power Level 41 dBmV
I think the carrier to noise is out of spec a little bit? Am I correct? If that's the case, why would it be out of spec? It has always been in spec and nothing has changed on my end in the last year that the modem has been directly connected to the pole and not going through any splitters...
Thanks!
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GeekNJ
Premium
join:2000-09-23
Waldwick, NJ
| Those signals are all fine JM.
Acceptable Ranges:
Downstream/Receive: -15dbmV to +15dbmV
Upstream/Transmit: 30dbmV to 55dbmV
Signal-to-Noise/Carrier-to-Noise Ratio: 30dB or greater
[text was edited by author 2003-07-12 20:20:27] |
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plat2on1
join:2002-08-21
Hopewell Junction, NY
clubs:
| reply to Jmartz
i been geting this also but as far as i can tell it hasn't effected me. the only reason i checked was because of this post heh.
030703105743 7-Information H501.6 HFC: TRC SYNC Recovery OK
030703105742 3-Critical H501.4 HFC: LOST TRC SYNC- trying to recover
030703105742 7-Information H501.12 HFC: FEC LOCK recovery OK
030703105742 7-Information H501.15 HFC:FEC LOCK recovery OK
030703105741 3-Critical H501.16 HFC: FEC LOCK recovery failed
030703105738 3-Critical H501.16 HFC: FEC LOCK recovery failed
030703105726 7-Information H501.6 HFC: TRC SYNC Recovery OK
030703105725 3-Critical H501.4 HFC: LOST TRC SYNC- trying to recover
030703105725 7-Information H501.12 HFC: FEC LOCK recovery OK
030703105725 7-Information H501.15 HFC:FEC LOCK recovery OK
030703105723 3-Critical H501.16 HFC: FEC LOCK recovery failed
030703105719 3-Critical H501.16 HFC: FEC LOCK recovery failed
030703105651 7-Information H501.6 HFC: TRC SYNC Recovery OK
030703105650 3-Critical H501.4 HFC: LOST TRC SYNC- trying to recover
030703105650 7-Information H501.12 HFC: FEC LOCK recovery OK
030703105650 7-Information H501.15 HFC:FEC LOCK recovery OK
030703105650 3-Critical H501.16 HFC: FEC LOCK recovery failed
030703105646 3-Critical H501.16 HFC: FEC LOCK recovery failed
dunno whats causing it. my signals are fine. |
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blohner
join:2002-06-26
Cortlandt Manor, NY
clubs: | IM engineer88 (include your MAC) - he can take a look at your node... I suspect some excessive noise issue? |
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snowpeas
I Need Fiber
join:2003-02-09
| reply to Jmartz
i think im having the same problems too. My internet connection dropped like 2-3 times a day and I can't connect unless i unplug my surboard 5100.
1970-01-01 00:00:13 3-Critical 0x0501BD64 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:00:20 3-Critical 0x04E33948 No Ranging Response received - T3 time-out
1970-01-01 00:00:13 3-Critical 0x040D9A2C DHCP WARNING - Non-critical field invalid in response.
Downstream: Frequency 603000000 Hz Locked
Signal to Noise Ratio 32 dB
Power Level -18 dB
Upstream:Channel ID 1
Frequency 25008000 Hz Ranged
Power Level 48 dBmV |
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Rainbows2
Premium
join:2003-06-25
| snowpeas, your downstream level is out of spec.
Power Level -18 dB
DOCSIS Limits: (-15 dB...15 dB)
Is your MODEM located off of any splitters? It should be placed off of the first split of the incoming cable line. If your incoming line is connected directly to the MODEM, you will have to give Tech Support a call.
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"You turn if you want to. The Lady’s not for turning."-Margaret Thatcher, 10 October 1980 |
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snowpeas
I Need Fiber
join:2003-02-09 | ya I placed a splitter on the direct incoming line. I'll try switching it and see. |
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snowpeas
I Need Fiber
join:2003-02-09
| OK, i just switched it. And it says my downstream powerlevel is -17dB. My splitter is a 2 way spliter, but it doesn't say which one is the first. But it doesn't matter its a 2way and i switched it and i still have a -17dB. Should I IM engineer88, like what blohner had told the guy? |
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blohner
join:2002-06-26
Cortlandt Manor, NY
clubs:
 ·Vonage
 ·Optimum Online
| said by snowpeas  :
OK, i just switched it. And it says my downstream powerlevel is -17dB. My splitter is a 2 way spliter, but it doesn't say which one is the first. But it doesn't matter its a 2way and i switched it and i still have a -17dB. Should I IM engineer88, like what blohner had told the guy?
with -17dB a service call is in order... It might drop a bit more when it get's warmer and then you will be in real trouble 
E88 can't fix the low downstream for you... You need to setup and appointment for them to come out...
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I am addicted to speed --- OOL speed that is ---
~Help find a cure for cancer~Proud Member Team Discovery |
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snowpeas
I Need Fiber
join:2003-02-09 | Will they charge for the service? and is it a problem with the line coming in my house or the cables in my house? |
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Irish Shark
Play Like A Champion Today
Premium,MVM
join:2000-07-29
Las Vegas, NV | If it is at the drop/first split where the signals are low, there is no charge. After that, they will usually charge you. |
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snowpeas
I Need Fiber
join:2003-02-09
| reply to Jmartz
Well I called them up a few mins ago and they said that my modem connecting directly to the incoming line was at -3.5dB. And i found out that i had 2 splitters. So thats why my signal was at -18.
Anyways isn't it possible for them to make the direct line signal at like +3.5 so that w/ 2 splitters i'll get -14.5dB?
Does it matter if the signal is -17dB? its out of range but i can still connect to the internet. Will I get slower downloads with -17dB?
[text was edited by author 2003-07-14 18:03:59] |
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Rainbows2
Premium
join:2003-06-25
| They can't arbitrarily "make" the signal do anything. It is dependent on the wiring and on the number of splitters used, among other factors. You may need to have your wiring replaced if it is damaged or aging. The MODEM should really be placed off the first splitter on its own run if you have a need for using more than one splitter on the direct line. It would be best to have them come out and do any wiring work necessary. If you leave your signals out of spec, you are likely to see disconnections, instability and poor performance. You should get them cleaned up.
[text was edited by author 2003-07-14 18:06:18] |
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snowpeas
I Need Fiber
join:2003-02-09
|  reply to Jmartz
Ok After hearing what Irish Shark had said, I removed one of the two spliters that I had and I ended having -13db. So I left my computer for an hour or so and when I came back, it was disconnected again. When I restarted the modem and check the powerlevel it went to -14dB.
So now i know its not the powerlevel problem. Do you guys have any idea whats causing my modem to disconnect? |
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Rainbows2
Premium
join:2003-06-25
| The signal level is currently in range, but that doesn't mean that it always is. At the time that you tested it, it registered at -14dB. It is possible the signal level was at -16dB when you experienced the disconnection. You may very well still have a signal level problem.
As I said above, the signal level problem could be caused by poor wiring. It is really time for you to bite the bullet and schedule a tech support appointment for them to inspect your setup and, if need be, redo any wiring. There is nothing you can do from your end to fix the problem.
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"You turn if you want to. The Lady’s not for turning."-Margaret Thatcher, 10 October 1980 |
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