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Modem Log

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Regular Visitor

Modem Log

Hello, I needed some help as I received a number of warnings in my Motorola modem and don't know what they mean. I have been having issues with inconsistent speeds and I don't know if they are related:   

 

Sync Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing; CM-MAC=00:40:36:64:ab:b6;CMTS-MAC=00:00:00:00:00:00; CM-QOS=1.0;CM-VER=3.0;

No UCDs Received - Timeout;;CM-MAC=00:40:36:64:ab:b6;CMTS-MAC=00:00:00:00:00:00; CM-QOS=1.0;CM-VER=3.0;

Sync Timing Synchronization failure ( same as above )

No Ranging Response Received - T3 time-out;CM-MAC=00:40:36:64:ab:b6;CMTS-MAC=00:38:df:08:89:5a;CM-QOS=1.0;CM-VER=3.0;

Sync Timing Synchronization Failure ( same as above ) 

Honoring MDD; IP provisioning mode=IPV6

Unicast DSID PSN Startup Error 

 

Thanks. 

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Expert

Re: Modem Log

Please also post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.

What is the exact make and model number of the modem ?

Is this a WiFi connection ?



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Regular Visitor

Re: Modem Log

It's just a Motorola MB7621 and im connecting w/ a cat 5 cable ( I'm currently waiting for a router to show up ) Here is the info from the modem: 

 

Downstream

Freq ( MHz ) / Pwr ( dBmV ) / SNR ( dB )

591.0 / 7.2 / 38.1

615.0 / 6.5 / 37.7

621.0 / 6.8 / 37.8

627.0 / 6.0 / 37.6

633.0 / 5.7 / 37.6

639.0 / 6.1 / 37.4

645.0 / 5.8 / 37.3

651.0 / 6.0 / 37.3  (corrected )

657.0 / 6.6 / 37.5

669.0 / 6.3 / 37.3

675.0 / 5.5 / 37.1

681.0 / 6.0 / 37.2

543.0 / 5.9 / 37.9

549.0 / 6.0 / 37.9

555.0 / 6.4 / 38.0

561.0 / 6.6 / 38.1

567.0 / 5.3 / 38.4

573.0 / 5.0 / 38.2

579.0 / 5.3 / 38.3

585.0 / 6.1 / 38.3

663.0 / 6.0 / 38.0

597.0 / 5.3 / 38.4

603.0 / 4.4 / 38.1

609.0 / 4.5 / 38.2

 

Upstream: 

Lock Status / Channel Type / Symb. Rate ( Kysm/sec ) / Freq. ( MHz ) / Pwr ( dBmV )

Locked / ATDMA / 5120 / 23.7 / 46.5

Locked / ATDMA / 5120 / 30.1 / 46.5

Locked / ATDMA / 5120 / 36.5 / 46.5

Locked / ATDMA / 5120 / 17.3 / 46.5

Not Locked / Unknown / 0 / 0.0

Not Locked / Unknown / 0 / 0.0

Not Locked / Unknown / 0 / 0.0

Not Locked / Unknown / 0 / 0.0

 

Thanks. 

 

 

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Expert

Re: Modem Log

FWIW, the stats are fine. Don't know what's going on...



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Regular Visitor

Re: Modem Log

Any help with figuring out why I'm getting these errors would be appreciated. Thank you for the responses so far. 

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Expert

Re: Modem Log

Perhaps there is intermittent noise ingress into the line(s) somewhere. It may be best to have a tech out to investigate / isolate the problem.

 

 Bear in mind that if the premises facing techs can not find or fix a problem at your home, it is they who are responsible for escalating it to their line / network / maintenance dept. techs. The problem may lie beyond your home in the local neighborhood infrastructure somewhere but it is their S.O.P. to start at the home.


Good luck with it and please post back with how things turn out.

 



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