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Any way to email logs on CM2000?
I'm having issues with Comcast/Xfinity and T3 timeouts, and would like to show them a day of logs to illustrate how many times my internet goes out. However, the event logs on my CM2000 only holds 40...
Power seems a bit on the high side however with in spec. Might check to see if ISP can turn his down just a bit.
However your getting lots of correct and un-correctables which should be mostly near zero.
You need to check the coax line, connectors, ensure connector is fully seated and screwed into the modems coax jack and remove any splitters if possible to test.
ISP should check this line as well UP to the modem.
Not that I know of. Best way would be to screen capture the cable connections status and events log page.
Please post a copy and paste of the modems connection status page.
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.
Be sure to power OFF the modem for 1 minute then back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router?article=24311
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
https://highspeed.tips/docsis-events/
What is the brand and model of the host wifi router connected to the modem?
FURRYe38 For my setup, I have a coax that comes into the basement (from the street I'm guessing, I can't access wherever it goes). That goes into a single connector and then to a splitter, where it breaks off to the modem and cable box. Xfinity has been out to replace the second coax, the connector, and the splitter before but nothing has fixed the problem. I'm starting to wonder if the issue is with the first coax that leaves the house, might try to pursue that. I can't easily replace it since I don't know the terminal end
outside house -----first coax----- connector ------second coax------ splitter-------modem/cable box
My router is a synology rt2600ac. When the internet goes out, all my devices are still able to access the router.
I can post the modem power settings if it'll help, but they all seem to be in line
joshua4242 wrote:
For my setup, I have a coax that comes into the basement (from the street I'm guessing, I can't access wherever it goes). That goes into a single connector and then to a splitter, where it breaks off to the modem and cable box. Xfinity has been out to replace the second coax, the connector, and the splitter before but nothing has fixed the problem. I'm starting to wonder if the issue is with the first coax that leaves the house, might try to pursue that. I can't easily replace it since I don't know the terminal end
outside house -----first coax----- connector ------second coax------ splitter-------modem/cable box
Try testing the modem to what comes up to the house. You'll need a new Coax line here. Help rule out whats currently inbetween and anything in between can cause problems.
Ideal would be outside house -----first coax------->modem/cable box
My router is a synology rt2600ac. When the internet goes out, all my devices are still able to access the router.
Basements are not recommended places for wifi routers. Concrete and steel will cause problems.
Does this router have a Internet or WAN LED that gives indication of a problem when this happens?
I can post the modem power settings if it'll help, but they all seem to be in line
Please post the Cable Connections status page so we can take a look.
Frequency start Value This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect. Starting Frequency Startup Procedure
Procedure Status Comment Acquire Downstream Channel 651000000 Hz Locked Connectivity State OK Operational Boot State OK Operational Security Enabled BPI+ Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables 1 Locked QAM256 25 651000000 Hz 6.4 dBmV 42.1 dB 14999 3211 2 Locked QAM256 1 507000000 Hz 3.8 dBmV 42.1 dB 28819 5617 3 Locked QAM256 2 513000000 Hz 4.0 dBmV 42.3 dB 29400 6023 4 Locked QAM256 3 519000000 Hz 4.0 dBmV 42.3 dB 27786 6181 5 Locked QAM256 4 525000000 Hz 4.0 dBmV 42.4 dB 25226 5650 6 Locked QAM256 5 531000000 Hz 4.0 dBmV 42.3 dB 24711 5689 7 Locked QAM256 6 537000000 Hz 5.0 dBmV 42.6 dB 26458 6087 8 Locked QAM256 7 543000000 Hz 5.3 dBmV 42.8 dB 29572 6904 9 Locked QAM256 8 549000000 Hz 5.6 dBmV 42.8 dB 27897 5859 10 Locked QAM256 9 555000000 Hz 5.7 dBmV 42.8 dB 22044 3607 11 Locked QAM256 10 561000000 Hz 6.0 dBmV 42.9 dB 18468 3101 12 Locked QAM256 11 567000000 Hz 5.7 dBmV 42.7 dB 18220 3755 13 Locked QAM256 12 573000000 Hz 5.9 dBmV 42.8 dB 19708 4307 14 Locked QAM256 13 579000000 Hz 6.2 dBmV 42.9 dB 19384 4119 15 Locked QAM256 14 585000000 Hz 6.7 dBmV 43.0 dB 20333 4080 16 Locked QAM256 15 591000000 Hz 6.7 dBmV 42.8 dB 22641 4480 17 Locked QAM256 16 597000000 Hz 7.1 dBmV 42.8 dB 19707 3486 18 Locked QAM256 17 603000000 Hz 7.0 dBmV 42.8 dB 13979 2989 19 Locked QAM256 18 609000000 Hz 6.8 dBmV 42.5 dB 13303 2490 20 Locked QAM256 19 615000000 Hz 6.6 dBmV 42.5 dB 13578 2385 21 Locked QAM256 20 621000000 Hz 6.9 dBmV 42.6 dB 16303 2984 22 Locked QAM256 21 627000000 Hz 6.8 dBmV 42.4 dB 16447 3595 23 Locked QAM256 22 633000000 Hz 7.3 dBmV 42.5 dB 14862 3859 24 Locked QAM256 23 639000000 Hz 7.2 dBmV 42.5 dB 17990 3754 25 Locked QAM256 24 645000000 Hz 7.5 dBmV 42.5 dB 18953 3551 26 Locked QAM256 26 657000000 Hz 6.9 dBmV 42.2 dB 17836 2329 27 Locked QAM256 27 663000000 Hz 6.8 dBmV 42.2 dB 13823 1996 28 Locked QAM256 28 669000000 Hz 6.8 dBmV 42.0 dB 15271 2139 29 Locked QAM256 29 675000000 Hz 6.6 dBmV 41.3 dB 15868 2445 30 Locked QAM256 30 681000000 Hz 7.1 dBmV 42.1 dB 11395 2763 31 Locked QAM256 31 687000000 Hz 7.2 dBmV 41.9 dB 7056 2913 32 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0 Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power 1 Locked ATDMA 25 5120 17300000 Hz 51.0 dBmV 2 Locked ATDMA 26 5120 23700000 Hz 47.3 dBmV 3 Locked ATDMA 27 5120 30100000 Hz 47.3 dBmV 4 Locked ATDMA 28 5120 36500000 Hz 44.0 dBmV 5 Not Locked Unknown 0 0 0 Hz 0.0 dBmV 6 Not Locked Unknown 0 0 0 Hz 0.0 dBmV 7 Not Locked Unknown 0 0 0 Hz 0.0 dBmV 8 Not Locked Unknown 0 0 0 Hz 0.0 dBmV Downstream OFDM Channels
Channel Lock
StatusModulation /
Profile IDChannel
IDFrequency Power SNR /
MERActive Subcarrier
Number RangeUnerrored
CodewordsCorrectable
CodewordsUncorrectable
Codewords1 Locked 0 ,1 ,2 ,3 33 780000000 Hz 8.1 dBmV 41.1 dB 1108 ~ 2987 11476205409 1436164848 230208 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