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Forum Discussion
CM1000 w/ R7000P
Hi I’ve had my modem and router for a couple of years. Everything was working fine till couple months ago my internet has been buggy. I noticed the modem upstream light will blink green then st...
You got some channels that are too High in power some that are in the opposite direction but with in the power range:
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
Any Criticals, Errors or Warnings seen in the event logs needs to be reviewed and resolved by the ISP. Indicates a signal issue on the ISP line up to the modem.
Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
Be sure there are no coax cable line splitters in the between the modem and ISP service box.
Be sure your using good quality RG6 coax cable up to the modem.
Start with removing any amplifiers, signal attenuators, or splitters from the coax.
From there check the line for kinks, damage, moisture in the line.
Check the connectors for improperly made ends, foil touching the copper coax line, loose connections, bad/old/cheap connectors, or corroded connections. Replace them if you do.
Be sure to power OFF the modem for 1 minute then back ON.
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
https://highspeed.tips/docsis-events/
I'm having them come out again tomorrow to recheck everything. I'll let you know.
I just came back home, now my upstream is solid green. Still having them come out. Here are my logs:
Downstream Bonded Channels Channel Lock Status Modulation Channel ID Frequency Power SNR / MER Unerrored Codewords Correctable Codewords Uncorrectable Codewords 1 Locked QAM256 5 759000000 Hz 7.9 dBmV 42.6 dB 438593060 145 172 2 Locked QAM256 1 735000000 Hz 7.6 dBmV 42.5 dB 444680989 191 177 3 Locked QAM256 2 741000000 Hz 7.7 dBmV 42.5 dB 444696576 152 190 4 Locked QAM256 3 747000000 Hz 7.8 dBmV 42.6 dB 444703476 143 119 5 Locked QAM256 4 753000000 Hz 8.0 dBmV 42.5 dB 444711960 141 115 6 Locked QAM256 25 117000000 Hz 2.9 dBmV 41.5 dB 330831039 616 1037 7 Locked QAM256 6 765000000 Hz 7.9 dBmV 42.5 dB 444727662 136 166 8 Locked QAM256 7 771000000 Hz 8.2 dBmV 42.5 dB 444734133 161 154 9 Locked QAM256 8 777000000 Hz 8.3 dBmV 42.7 dB 444742155 147 133 10 Locked QAM256 26 123000000 Hz 2.9 dBmV 41.3 dB 437155352 1871 2658 11 Locked QAM256 27 129000000 Hz 2.9 dBmV 41.4 dB 437163469 3854 4863 12 Locked QAM256 28 135000000 Hz 2.5 dBmV 41.4 dB 437174175 5329 7299 13 Locked QAM256 29 141000000 Hz 2.0 dBmV 41.2 dB 437187239 4854 8