Intermittent internet connectivity issues throughout the day

[johnhillphoto]

I keep having connection issues throughout my work day.  I am connected via a Netgear CM1150V connected directly via ethernet.  What troubleshooting data should I post here to get this issue resolved?

Here are some logs from the modem.

Downstream Bonded Channels

Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables 1 Locked QAM256 25 603000000 Hz -5.2 dBmV 40.2 dB 2835 1739 2 Locked QAM256 9 507000000 Hz -3.6 dBmV 41.5 dB 3005 1859 3 Locked QAM256 10 513000000 Hz -3.8 dBmV 41.4 dB 3927 6155 4 Locked QAM256 11 519000000 Hz -3.7 dBmV 41.3 dB 3936 5898 5 Locked QAM256 12 525000000 Hz -4.2 dBmV 41 dB 3878 6138 6 Locked QAM256 13 531000000 Hz -4 dBmV 41.2 dB 3489 4467 7 Locked QAM256 14 537000000 Hz -4.3 dBmV 41 dB 3340 3994 8 Locked QAM256 15 543000000 Hz -4.5 dBmV 40.9 dB 3672 6025 9 Locked QAM256 16 549000000 Hz -4.8 dBmV 40.8 dB 3548 5969 10 Locked QAM256 17 555000000 Hz -4.7 dBmV 40.7 dB 3666 4444 11 Locked QAM256 18 561000000 Hz -4.5 dBmV 40.8 dB 3371 4288 12 Locked QAM256 19 567000000 Hz -5.5 dBmV 40.2 dB 3452 4169 13 Locked QAM256 20 573000000 Hz -5 dBmV 40.5 dB 3530 5820 14 Locked QAM256 21 579000000 Hz -5.8 dBmV 40 dB 3378 4710 15 Locked QAM256 22 585000000 Hz -5.4 dBmV 40.2 dB 3659 6018 16 Locked QAM256 23 591000000 Hz -5.7 dBmV 40 dB 3551 6022 17 Locked QAM256 24 597000000 Hz -5.2 dBmV 40.2 dB 3535 4707 18 Locked QAM256 26 609000000 Hz -5.6 dBmV 40 dB 3655 5252 19 Locked QAM256 27 615000000 Hz -5.3 dBmV 40.1 dB 4031 6434 20 Locked QAM256 28 621000000 Hz -5 dBmV 40.2 dB 4234 6690 21 Locked QAM256 29 627000000 Hz -5.1 dBmV 40.1 dB 4189 6333 22 Locked QAM256 30 633000000 Hz -5.2 dBmV 39.9 dB 3730 4745 23 Locked QAM256 31 639000000 Hz -5.5 dBmV 39.8 dB 4280 6290 24 Locked QAM256 32 645000000 Hz -5.6 dBmV 39.6 dB 3952 4664 25 Locked QAM256 33 651000000 Hz -6.4 dBmV 39.2 dB 4241 5010 26 Locked QAM256 34 657000000 Hz -5.7 dBmV 39.5 dB 3970 4603 27 Locked QAM256 35 663000000 Hz -6.6 dBmV 39.1 dB 4469 6338 28 Locked QAM256 36 669000000 Hz -6.1 dBmV 39.3 dB 4803 4833 29 Locked QAM256 37 675000000 Hz -6.9 dBmV 38.2 dB 4841 6200 30 Locked QAM256 38 681000000 Hz -6.5 dBmV 39.2 dB 4698 6185 31 Locked QAM256 39 687000000 Hz -7.1 dBmV 38.7 dB 4739 6023 32 Locked QAM256 40 693000000 Hz -6.8 dBmV 39 dB 4421 4622

Upstream Bonded Channels

Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power 1 Locked ATDMA 1 5120 Ksym/sec 36500000 Hz 48 dBmV 2 Locked ATDMA 2 5120 Ksym/sec 30100000 Hz 47.5 dBmV 3 Locked ATDMA 3 5120 Ksym/sec 23700000 Hz 47.5 dBmV 4 Locked ATDMA 4 5120 Ksym/sec 17300000 Hz 47.5 dBmV 5 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 6 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 7 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 8 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV

Downstream OFDM Channels

Channel Lock Status Modulation / Profile ID Channel ID Frequency Power SNR / MER Active Subcarrier Number Range Unerrored Codewords Correctable Codewords Uncorrectable Codewords 1 Locked 0 159 702000000 Hz -5.9 dBmV 37.4 dB 1126 ~ 2969 164831979147 17700273446 1034 2 Not Locked 0 0 0 Hz 0 dBmV 0.0 dB 0 ~ 4095 0 0 0

Upstream OFDMA Channels

Channel Lock Status Modulation / Profile ID Channel ID Frequency Power 1 Not Locked 0 0 0 Hz 0 dBmV 2 Not Locked 0 0 0 Hz 0 dBmV

[EG]

The connection quality / signals is / are a bit on the weak side and they may be intermittently fluctuating even farther to out of spec levels. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.

In a self troubleshooting effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1002 MHz, bi-directional, and no gold colored garbage types like GE, RadioShack, RCA, Philips, Leviton, Magnavox, and Rocketfish from big box stores like Home Depot, Lowes, Target, Wal-Mart etc. Splitters should be swapped with known to be good / new ones to test

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two way splitter connected directly off of the drop from the street/pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed, and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.

[johnhillphoto]

I will check out each of the connections, and clean as needed.  I will also checkout the single splitter for quality.  I know that there is one splitter inside that splits the one incoming line.  One end goes to cable box, and one to the cable modem.
I will report back if I find any further issues.  Most likely will book a service call after that.

[EG]

Good luck with it !