Topic '[Signals] signals' in forum 'Comcast HSI' - dslreports.com

Re: [Signals] signals

Mon, 28 May 2012 18:54:32 EDT

jice443 posted : the modem is a motorola sb6120 maybe i should try to get a new one still getting random lag spikes like it comes and goes its not all the time but i have never had this well not in the last couple of years

Re: [Signals] signals

Mon, 28 May 2012 17:42:01 EDT

EG posted :

said by pclover:

Looks okay to me but the SNR seems a bit lower. Not out of spec tho. That could be fluctuating down lower.

FWIW, may I add that sometimes a low SNR with a forward (downstream) power level that is strong can indicate a failing modem.

Re: [Signals] signals

Mon, 28 May 2012 16:39:07 EDT

pclover posted : How many time outs of those is there? Did you call comcast and ask what your Upstream SNR is?

Re: [Signals] signals

Mon, 28 May 2012 11:26:17 EDT

jice443 posted : hey thanks for the reply looked at the logs had this in there this morning also im getting alot lag lately in skype calls which was never an issue befor and alot lagg in diffrent games i play which wasnt present befor

May 28 2012 08:32:57 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=00:21:80:f2:ce:0d;CMTS-MAC=00:01:5c:40:c4:46;CM-QOS=1.1;CM-VER=3.0;

Re: [Signals] signals

Mon, 28 May 2012 04:37:12 EDT

pclover posted : Looks okay to me but the SNR seems a bit lower. Not out of spec tho. That could be fluctuating down lower.

What issues are you having specifically? Also it might be a good idea to call comcast and ask them what you Upstream SNR is.

Does your modem log show anything as regrades to T3 or T4 timeouts?

[Signals] signals

Mon, 28 May 2012 03:54:20 EDT

jice443 posted : just wanted someone to look at my signals to see if they were where they need to be been having weird connection issues lately while gaming or over skype calls if anyone could look at these and let me know it would be much appreciated

Channel ID 4 1 7 8
Frequency 711000000 Hz 693000000 Hz 729000000 Hz 735000000 Hz
Signal to Noise Ratio 36 dB 36 dB 36 dB 36 dB
Downstream Modulation QAM256 QAM256 QAM256 QAM256
Power Level
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
3 dBmV 7 dBmV 4 dBmV 5 dBmV

Upstream Bonding Channel Value
Channel ID 12 11 10
Frequency 36400000 Hz 29600000 Hz 22800000 Hz
Ranging Service ID 6516 6516 6516
Symbol Rate 5.120 Msym/sec 5.120 Msym/sec 2.560 Msym/sec
Power Level 43 dBmV 42 dBmV 41 dBmV
Upstream Modulation [3] QPSK [3] 64QAM [3] QPSK [3] 64QAM [3] QPSK [2] 16QAM [3] 64QAM

Ranging Status Success Success Success

Channel ID 4 1 7 8
Total Unerrored Codewords 162696131 162678886 162677832 162691289
Total Correctable Codewords 73846 79598 82431 77480
Total Uncorrectable Codewords 545419 557163 555502 546514