dslreports logo
site
 
    All Forums Hot Topics Gallery
spc

spacer




how-to block ads


Search Topic:
uniqs
1246
share rss forum feed

mak1302

join:2013-08-05
Scarborough, ON

[Cable] Thomson DCM476 Disconnects

I've been with teksavvy for about 5 months now. Recently, my modem disconnect and gets stuck with the UL light flashing. Within the last week I've had this happen daily, where I would randomly get it to work again after multiple resets of the modem. Below is my log. Any help would be much appreciated.

Status Code: Operational
Software Version: STAC.02.50
Software Model: a81a
Bootloader: 2.3.1

Cable Signal Details
Forward Path:
Channel Frequency Power SNR BER Modulation
1 633.0 MHz 15.2 dBmV 35.3 dB 0.000 % 256 QAM
2 591.0 MHz 14.3 dBmV 38.9 dB 0.000 % 256 QAM
3 597.0 MHz 15.9 dBmV 39.4 dB 0.000 % 256 QAM
4 603.0 MHz 16.6 dBmV 39.5 dB 0.000 % 256 QAM
5 609.0 MHz 16.9 dBmV 39.5 dB 0.000 % 256 QAM
6 615.0 MHz 16.9 dBmV 39.4 dB 0.000 % 256 QAM
7 621.0 MHz 15.3 dBmV 38.9 dB 0.000 % 256 QAM
8 639.0 MHz 16.2 dBmV 38.2 dB 0.000 % 256 QAM
Return Path:
Channel ID Frequency Power Modulation
3 23.7 MHz 57.0 dBmV 64 QAM
0 0.0 MHz 0.0 dBmV QPSK
0 0.0 MHz 0.0 dBmV QPSK
0 0.0 MHz 0.0 dBmV QPSK
Data Service Details
Provisioned Address: Yes
Provisioned Time: Yes
Provisioned Configuration: Yes
Registered: Yes
BPI: Enabled


Azmodan012

join:2013-05-10
Chatham, ON
kudos:2

Your power levels on your forward path are way higher than they should be. And your return path signal level is as well. But your also missing several upstream channels ontop of that.

You want your forward path power to stay between -11 to 11 (positive) dBmV, and you want four upstream channels with the power between 35 to 52 dBmV.

Double check your coaxal cable connection and any splitters on the line that may have gone bad.

If your still having an issue I would highly suggust you make a post in the direct forum or call in to technical support for help.


mak1302

join:2013-08-05
Scarborough, ON

Thank you for your quick reply!


mlord

join:2006-11-05
Nepean, ON
kudos:13
reply to mak1302

If you can eliminate a splitter somewhere, or ensure that the first splitter inside the house is a 1:2 and the modem is on it, then that will help.



sbrook
Premium,Mod
join:2001-12-14
Ottawa
kudos:12
reply to mak1302

Those levels look like you have the modem behind a signal booster. You shouldn't put a cable modem behind a booster.

A booster, even with a return path, will attenuate the return path, and only boost the forward path.


mak1302

join:2013-08-05
Scarborough, ON

said by sbrook:

Those levels look like you have the modem behind a signal booster. You shouldn't put a cable modem behind a booster.

A booster, even with a return path, will attenuate the return path, and only boost the forward path.

said by mlord:

If you can eliminate a splitter somewhere, or ensure that the first splitter inside the house is a 1:2 and the modem is on it, then that will help.

Thanks everyone for your replies. I have traced my line from the modem, it appears to go directly outside my house into a Roger's sealed box (no splitters). I have posted on the direct forum for support.