I have had 2 service calls and they verified the signal coming into the home is great but each morning I have to restart the Gateway to get websites like Grubhub and Twitch to load. Today I was able to get the connection data as the network was just starting to come up. I'm no expert but there seems to tbe some wild fluctuations with the power signal. See below. Any suggestions? I've had this problem since April.
| Downstream Bonded Channels |
| Channel | Lock Status | Modulation | Channel ID | Frequency | Power | SNR | Correctables | Uncorrectables | | 1 | Locked | QAM256 | 9 | 531000000 Hz | 3.6 dBmV | 37 dB | 0 | 0 | | 2 | Locked | QAM256 | 42 | 405000000 Hz | 1.4 dBmV | 37.6 dB | 0 | 0 | | 3 | Locked | QAM256 | 43 | 411000000 Hz | 1.5 dBmV | 37.6 dB | 0 | 0 | | 4 | Locked | QAM256 | 44 | 417000000 Hz | 1.8 dBmV | 37.5 dB | 0 | 0 | | 5 | Locked | QAM256 | 45 | 423000000 Hz | 2 dBmV | 37.5 dB | 0 | 0 | | 6 | Locked | QAM256 | 38 | 429000000 Hz | 2.4 dBmV | 37.6 dB | 0 | 0 | | 7 | Locked | QAM256 | 39 | 435000000 Hz | 2.4 dBmV | 37.6 dB | 0 | 0 | | 8 | Locked | QAM256 | 40 | 441000000 Hz | 2.4 dBmV | 37.5 dB | 0 | 0 | | 9 | Locked | QAM256 | 41 | 447000000 Hz | 2.4 dBmV | 37.6 dB | 0 | 0 | | 10 | Locked | QAM256 | 33 | 453000000 Hz | 2.7 dBmV | 37.6 dB | 0 | 0 | | 11 | Locked | QAM256 | 34 | 459000000 Hz | 2.9 dBmV | 37.6 dB | 0 | 0 | | 12 | Locked | QAM256 | 35 | 465000000 Hz | 3.1 dBmV | 37.6 dB | 0 | 0 | | 13 | Locked | QAM256 | 36 | 471000000 Hz | 3.1 dBmV | 37.5 dB | 0 | 0 | | 14 | Locked | QAM256 | 1 | 477000000 Hz | 3.1 dBmV | 37.5 dB | 0 | 0 | | 15 | Locked | QAM256 | 2 | 483000000 Hz | 3.1 dBmV | 37.4 dB | 0 | 0 | | 16 | Locked | QAM256 | 3 | 489000000 Hz | 3.3 dBmV | 37.4 dB | 0 | 0 | | 17 | Locked | QAM256 | 4 | 495000000 Hz | 3 dBmV | 38.1 dB | 0 | 0 | | 18 | Locked | QAM256 | 5 | 507000000 Hz | 3.2 dBmV | 37.8 dB | 0 | 0 | | 19 | Locked | QAM256 | 6 | 513000000 Hz | 3 dBmV | 37.8 dB | 0 | 0 | | 20 | Locked | QAM256 | 7 | 519000000 Hz | 2.9 dBmV | 37.8 dB | 0 | 0 | | 21 | Locked | QAM256 | 8 | 525000000 Hz | 3 dBmV | 37.8 dB | 0 | 0 | | 22 | Locked | QAM256 | 10 | 537000000 Hz | 3.2 dBmV | 37.6 dB | 0 | 0 | | 23 | Locked | QAM256 | 11 | 543000000 Hz | 3.2 dBmV | 37.5 dB | 0 | 0 | | 24 | Locked | QAM256 | 12 | 549000000 Hz | 3.1 dBmV | 37.4 dB | 0 | 0 |
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| Upstream Bonded Channels |
| Channel | Lock Status | US Channel Type | Channel ID | Symbol Rate | Frequency | Power | | 1 | Locked | ATDMA | 6 | 5120 Ksym/sec | 29200000 Hz | 51.8 dBmV | | 2 | Locked | ATDMA | 5 | 5120 Ksym/sec | 35600000 Hz | 51.8 dBmV | | 3 | Locked | ATDMA | 7 | 5120 Ksym/sec | 22800000 Hz | 51 dBmV | | 4 | Locked | ATDMA | 8 | 5120 Ksym/sec | 16400000 Hz | 50.5 dBmV | | 5 | Locked | ATDMA | 10 | 2560 Ksym/sec | 40400000 Hz | 50.5 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 |
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| Extended Upstream Transmit Power |
| Enable Extended Upstream Transmit Power |
BruceW
Gold Problem Solver
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26.5K Messages
5 years ago
The upstream power levels are borderline/too high. Problems like this are often due to poor coax connections or damaged coax cable, usually in or near your home.
If you want to troubleshoot this yourself, please see Internet Troubleshooting Tips. If you can't find the problem or you'd rather have Comcast take care of it, call them at the phone number on your bill or 1-800-Comcast, or use one of the options on https://www.xfinity.com/support/contact-us/. If they can't fix the problem remotely (unlikely), insist they send a tech out to identify the cause and correct it. I realize that you've already had techs out, but if you don't lean on them to fix this, it likely won't be corrected.
If the tech finds bad coax, splitters, amplifiers, or connections in your home (even if Comcast originally supplied them) you'll probably have to pay for the visit unless you have their Service Protection Plan (https://www.xfinity.com/support/articles/service-protection-plan, closed to customers that don't already have it). If the trouble is due to a faulty Comcast rental device, or anything outside your home, you shouldn't be charged.
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BruceW
Gold Problem Solver
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26.5K Messages
5 years ago
You are welcome, and good luck. Comcast should be able to fix this for you and do ir without charging more than they already have, but sadly, it isn't always possible to persuade them to do the right thing.
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Stickler911
Frequent Visitor
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11 Messages
5 years ago
Thank you BruceW! What you said makes sense since I looked up what upstream power levels should be at and my levels are a bit high. I will contact Comcast again and hope they send someone that can truly identify the problem otherwise I have no choice but to cancel my service and try another provider. Thanks again for your quick response.
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