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Hub5 - errors in log
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Old 31-10-2022, 17:43   #1
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Hub5 - errors in log

Anyone know what causes these?

RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;

RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW

Dynamic Range Window violation


31 downstream channels are all between -3.6 and 1.1DBmV and 39-40 for SNR

5 Upsteam channels are between 40.8 and 42.5DBmV.

Download speed regular at 1140M and upload ususuall 52.8M - there are a few pre and post RS Errors with <80 maximum over 3-4 days.
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Old 06-11-2022, 17:47   #2
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Re: Hub5 - errors in log

That’s one of those messages with potentially complex causes. It boils down to one thing: During initial ranging, when it sets up the channels, there is one or more channels that are not performing well and no amount of power can drive intelligible signals through.

The cause of this could be noise on the circuit, cables not screwed in tight - anything that impairs signal travel.

Btw, you also have DOCSIS 3.1 channels, one each for downstream & upstream.
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Old 08-11-2022, 17:58   #3
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Re: Hub5 - errors in log

Odd one - they have not reappeared since 1 Nov.

Quote:
Originally Posted by Sephiroth View Post
That’s one of those messages with potentially complex causes. It boils down to one thing: During initial ranging, when it sets up the channels, there is one or more channels that are not performing well and no amount of power can drive intelligible signals through.

The cause of this could be noise on the circuit, cables not screwed in tight - anything that impairs signal travel.

Btw, you also have DOCSIS 3.1 channels, one each for downstream & upstream.
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