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mgustus's avatar
mgustus
Aspirant
Mar 15, 2018
Solved

Netgear c6300 correctable and uncorrectable errors using Spectrum cable

I'm getting a large amount of correctable and uncorrectables errors in the log. Is this a ISP issue? Occasionally the modem goes offline and requires a reboot. 

Firmware Version 

V2.01.22
Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUnCorrectables
1LockedQAM 2561603000000 Hz-6.9 dBmV34.3 dB1442141112066
2LockedQAM 2562609000000 Hz-8.0 dBmV33.9 dB1685784624562
3LockedQAM 2563615000000 Hz-7.9 dBmV33.8 dB1646614622287
4LockedQAM 2564621000000 Hz-7.0 dBmV34.4 dB121798286860
5LockedQAM 2565627000000 Hz-8.9 dBmV30.9 dB24656482131692
6LockedQAM 2566633000000 Hz-10.0 dBmV31.9 dB2049752852336
7LockedQAM 2567639000000 Hz-8.4 dBmV33.4 dB108306944141
8LockedQAM 2568645000000 Hz-9.5 dBmV33.3 dB1485064614378
9LockedQAM 2569651000000 Hz-9.9 dBmV32.6 dB1751267827163
10LockedQAM 25611663000000 Hz-8.4 dBmV32.5 dB129064577828
11LockedQAM 25615687000000 Hz-8.4 dBmV33.8 dB1640494821644
12LockedQAM 25616693000000 Hz-6.9 dBmV34.3 dB105970443779
13LockedQAM 25618705000000 Hz-6.5 dBmV34.4 dB93601952370
14LockedQAM 25619711000000 Hz-7.9 dBmV33.8 dB1379091510576
15LockedQAM 25620717000000 Hz-7.5 dBmV33.8 dB117322505255
16LockedQAM 25623735000000 Hz-8.0 dBmV33.3 dB1549852716453
Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedTDMA652560 Ksym/sec19400000 Hz52.0 dBmV
2LockedATDMA665120 Ksym/sec24200000 Hz51.0 dBmV
3LockedATDMA675120 Ksym/sec30600000 Hz51.0 dBmV
4LockedATDMA685120 Ksym/sec37000000 Hz51.0 dBmV

 

Thanks for your time.

Mike

  • your RF signal is pretty bad.

     

    you have below problems:

    1. Downstream power level is very low. It should be ideally 0dB

    2. Upstream power level is very HIGH (which is bad). Should be in mid-high 40s

    3. your SNR for some channels is low and also tons of uncorrectables. These packets are dropped and therefore slow speed.

     

    you should get ISP to fix the line or check if this is caused by your in-home wiring or splitters. 

1 Reply

  • vkdelta's avatar
    vkdelta
    NETGEAR Employee Retired

    your RF signal is pretty bad.

     

    you have below problems:

    1. Downstream power level is very low. It should be ideally 0dB

    2. Upstream power level is very HIGH (which is bad). Should be in mid-high 40s

    3. your SNR for some channels is low and also tons of uncorrectables. These packets are dropped and therefore slow speed.

     

    you should get ISP to fix the line or check if this is caused by your in-home wiring or splitters.