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Forum Discussion

wg45678's avatar
wg45678
Aspirant
Nov 30, 2015

C6300 and Cable signal drops

Hello. Trying to resolve recurring issues with Medicom and my C6300, firmware version v1.02.21.  My cable connection and internet access randomly drops. Here are the symptoms.    1) Modem connectio...
Troubleshooting
vkdelta's avatar
vkdelta
NETGEAR Employee Retired
Dec 01, 2015

wg45678

 

Hi,

 

Can you please post the power values? and full event log?

 

How do I obtain the event logs from a NETGEAR cable modem/modem router?

Link: http://kb.netgear.com/app/answers/detail/a_id/30008

 

How do I obtain the cable connection information from a NETGEAR cable modem/modem router?

Link: http://kb.netgear.com/app/answers/detail/a_id/30007

 

as soon as I see this message "Unicast Ranging Received Abort Response" , I see that reset was initiated from ISP side (Mediacom). also, if you have lot of uncorretables, that is another sign of RF issue from ISP.

 

We had a another community user from the same ISP with similar issue. he resolved the issue by removing unnecessary splitter(s) in his home. 

 

DoS attack info is ok as it is an internal packet. You can ignore it.

 

 

wg45678's avatar
wg45678
Aspirant
Dec 01, 2015

Time stamp is apparently central time (1 hour ahead of local) despite being physcially located in AZ. 

 

Power readings:

Apply             Cancel    
Frequency start Value 
This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.
Starting Frequency
Startup Procedure
ProcedureStatusComment
Acquire Downstream Channel111000000 HzLocked
Connectivity StateOkOperational
Boot State----
Configuration File----
SecurityDisabledDisabled
Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUnCorrectables
1LockedQAM 2569793000000 Hz4.5 dBmV40.3 dB696507764
2LockedQAM 25698105000000 Hz4.4 dBmV38.9 dB989711300326
3LockedQAM 25699111000000 Hz4.1 dBmV40.3 dB819420137
4LockedQAM 256100117000000 Hz3.9 dBmV40.3 dB855097117
5LockedQAM 256101123000000 Hz3.5 dBmV40.3 dB963707126
6LockedQAM 256102135000000 Hz3.9 dBmV40.3 dB180
7LockedQAM 256103141000000 Hz3.9 dBmV40.3 dB350
8LockedQAM 256104147000000 Hz4.0 dBmV40.9 dB320
9Not LockedN/AN/A0 Hz0.0 dBmV0.0 dB00
10Not LockedN/AN/A0 Hz0.0 dBmV0.0 dB00
11Not LockedN/AN/A0 Hz0.0 dBmV0.0 dB00
12Not LockedN/AN/A0 Hz0.0 dBmV0.0 dB00
13Not LockedN/AN/A0 Hz0.0 dBmV0.0 dB00
14Not LockedN/AN/A0 Hz0.0 dBmV0.0 dB00
15Not LockedN/AN/A0 Hz0.0 dBmV0.0 dB00
16Not LockedN/AN/A0 Hz0.0 dBmV0.0 dB00
Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA25120 Ksym/sec30600000 Hz47.8 dBmV
2LockedATDMA15120 Ksym/sec37000000 Hz49.3 dBmV
3Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV
4Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV
Current System Time: Mon Nov 30 23:04:19 2015

 

 

 

 

  • wg45678's avatar
    wg45678
    Aspirant
    Dec 01, 2015

    Event Log part 1

     

    TimePriorityDescription
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out
    Nov 30 01:14:01 2015Critical (3) No Ranging Response received - T3 time-out