Regular Visitor
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3 Messages
Re: Intermittent Dropping of Internet
Hello, I was hoping you could help me with a samilar issue. We get internet drops all throughout the day at random times. Some days are far worse than others and it impacts all devices. Internet drops can be for a minute or can happen continously for hours, sometimes even impacting the tv when trying to change the channel. I have attached the upstream and downstream levels as well as event logs since last reset. Any help would be great
| [Harvester][1163]: Harvester StartRadioTrafficHarvesting Starting Thread to start RadioTraffic Data Harvesting | 8/12/20 14:37 | Notice |
| [Harvester][1163]: Harvester StartAssociatedDeviceHarvesting : Started Thread to start DeviceData Harvesting | 8/12/20 14:37 | Notice |
| [Dhcpc][1739]: erouter0 got new IP 73.60.79.61 | 8/12/20 14:34 | Notice |
| [Harvester][1158]: Harvester StartRadioTrafficHarvesting Starting Thread to start RadioTraffic Data Harvesting | 8/12/20 13:06 | Notice |
| [Harvester][1158]: Harvester StartAssociatedDeviceHarvesting : Started Thread to start DeviceData Harvesting | 8/12/20 13:06 | Notice |
| [Dhcpc][1758]: erouter0 got new IP 73.60.79.61 | 8/12/20 13:04 | Notice |
IndexLock StatusFrequencySNRPower LevelModulation
Downstream | Channel Bonding Value | ||||||||||||||||||||||||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 |
Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Not Locked | Not Locked | Not Locked | Not Locked | Not Locked | Not Locked | Not Locked | Not Locked |
675.00 MHz | 555.00 MHz | 561.00 MHz | 567.00 MHz | 573.00 MHz | 579.00 MHz | 585.00 MHz | 591.00 MHz | 597.00 MHz | 603.00 MHz | 609.00 MHz | 615.00 MHz | 621.00 MHz | 627.00 MHz | 633.00 MHz | 639.00 MHz | 645.00 MHz | 651.00 MHz | 657.00 MHz | 663.00 MHz | 669.00 MHz | 681.00 MHz | 687.00 MHz | 693.00 MHz | ||||||||
38.98 dB | 40.37 dB | 40.37 dB | 40.37 dB | 38.98 dB | 40.37 dB | 38.98 dB | 40.37 dB | 39.85 dB | 38.98 dB | 40.37 dB | 38.98 dB | 39.85 dB | 38.98 dB | 38.98 dB | 38.98 dB | 38.98 dB | 38.61 dB | 38.98 dB | 38.98 dB | 38.98 dB | 38.61 dB | 38.98 dB | 38.98 dB | ||||||||
-2.40 dBmV | -3.00 dBmV | -3.00 dBmV | -3.40 dBmV | -3.50 dBmV | -3.20 dBmV | -3.40 dBmV | -3.30 dBmV | -3.10 dBmV | -3.10 dBmV | -2.90 dBmV | -2.90 dBmV | -2.90 dBmV | -2.40 dBmV | -2.70 dBmV | -2.90 dBmV | -2.90 dBmV | -3.10 dBmV | -3.20 dBmV | -3.20 dBmV | -2.70 dBmV | -2.20 dBmV | -1.80 dBmV | -2.00 dBmV | ||||||||
256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM |
| Channel Bonding Value | ||||||||
| Index | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Lock Status | Not Locked | Not Locked | Not Locked | Locked | Not Locked | Not Locked | Not Locked | Not Locked |
| Frequency | 23.70 MHz | 17.30 MHz | 30.10 MHz | 36.50 MHz | ||||
| Symbol Rate | 0 KSym/s | 5120 KSym/s | 0 KSym/s | 5120 KSym/s | ||||
| Power Level | 0.00 dBmV | 53.50 dBmV | 0.00 dBmV | 52.75 dBmV | ||||
| Modulation | QPSK | 64 QAM | QPSK | 64 QAM | ||||
| Channel Type | (Unknown) | DOCSIS2.0 (ATDMA) | (Unknown) | DOCSIS2.0 (ATDMA) |
Responses
EG
Expert
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86.7K Messages
9 m ago
The upstream power is too high / out of spec. 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.
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roma15
Regular Visitor
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3 Messages
9 m ago
Thank you for the reply! I am only aware of one splitter between the pole and the modem that was installed in the basement by Comcast. On the outside of the house where the wire is attached to the house before it comes in, it looks as though there could be a possible break in the covering of the wire exposing it. Could this be leading to the spikes in upstream power?
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roma15
Regular Visitor
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3 Messages
9 m ago
I appreciate your help!
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EG
Expert
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86.7K Messages
9 m ago
Certainly. Perhaps it would be best to have a tech out for this one. Good luck !
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EG
Expert
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86.7K Messages
9 m ago
My pleasure !
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