[Connectivity] Random Disconnects

[Connectivity] Random Disconnects
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raccettura @ 6th Nov 08:29PM:
[Connectivity] Random Disconnects

Over the past 36 hours seeing some connectivity issues. Looking in the modems event log I see repeated:

Fri Nov 06 04:58:30 2009 Critical (3) Init RANGING Critical Ranging Request Retries exhausted
Fri Nov 06 04:58:30 2009 Critical (3) No Ranging Response received - T3 time-out
Fri Nov 06 04:55:46 2009 Critical (3) Received Response to Broadcast Maintenance Request, But no Un...

That correspond to the connectivity issues which resolve themselves after several minutes.

Attaching signal quality info (screenshot since modem puts each field into an iframe for whatever reason.

jpinsl @ 6th Nov 09:04PM:
Re: [Connectivity] Random Disconnects

Upstream Power is too high.
»www2.dslreports.com/faq/comcast/···ms#16085

Roll a tech to check it.
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raccettura @ 6th Nov 09:16PM:
Re: [Connectivity] Random Disconnects

I've also seen drops at 51, and 52. So I'm not really sure if the upstream power is at fault.

That's reading is actually a little bit of an outlier. The running average is about 57 from what I'm seeing.

(i have rrd graphs after the last time a tech was out)
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EG @ 6th Nov 11:35PM:
Re: [Connectivity] Random Disconnects

Even 57 dB is too high. That is if the modem is actually giving accurate readings..
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beachintech @ 7th Nov 07:52AM:
Re: [Connectivity] Random Disconnects

said by raccettura :

I've also seen drops at 51, and 52. So I'm not really sure if the upstream power is at fault.

That's reading is actually a little bit of an outlier. The running average is about 57 from what I'm seeing.

(i have rrd graphs after the last time a tech was out)

61 is the max the modem can output. You have a definite signal problem. Anything over 53 ish is going to cause you a bunch of issues. Personally, I don't like to see anything 50+. An average of 57 is a huge problem. You need a tech to come out and balance your home out.
--
Tech at the Beach.
I speak for myself, not my employer.
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