Contributor
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35 Messages
Trouble with bad downstream signals at parent's house/neighborhood
*sigh* this forum software is terrible, i just had a whole message typed up and all of sudden my session was "expired". Everything got erased, nothing was saved at all...... *bigger sigh* it happens everytime I try to upload a picture of the signal levels..........
I would like to see if someone could look into bad signal in my parent's gated rural community. I have remotely checked a few neighbors and those that use Comcast all have identically bad downstream signals, so i suspect the issue might be outside of their home. My dad tried calling in, but the chat bot told him to use the Xfinity app and that was too complicated for him (couldn't remember password, doesn't have access to email address account.) I can provide modem MACs or SSN/other ID information. Let me know, thanks.
| Channel ID | Lock Status | Modulation | Frequency | Power | SNR/MER | Corrected | Uncorrectables |
| 1 | Locked | QAM256 | 393000000 Hz | -8.8 dBmV | 40.6 dB | 6242 | 1538 |
| 2 | Locked | QAM256 | 399000000 Hz | -8.7 dBmV | 40.8 dB | 4052 | 991 |
| 3 | Locked | QAM256 | 405000000 Hz | -8.4 dBmV | 40.8 dB | 2174 | 419 |
| 4 | Locked | QAM256 | 411000000 Hz | -8.3 dBmV | 40.9 dB | 1750 | 483 |
| 5 | Locked | QAM256 | 417000000 Hz | -8.1 dBmV | 41.0 dB | 1139 | 225 |
| 6 | Locked | QAM256 | 423000000 Hz | -8.2 dBmV | 40.9 dB | 1046 | 232 |
| 7 | Locked | QAM256 | 429000000 Hz | -8.4 dBmV | 40.8 dB | 2501 | 598 |
| 8 | Locked | QAM256 | 435000000 Hz | -8.2 dBmV | 41.2 dB | 4753 | 1998 |
| 9 | Locked | QAM256 | 453000000 Hz | -9.0 dBmV | 40.6 dB | 364 | 93 |
| 10 | Locked | QAM256 | 459000000 Hz | -9.9 dBmV | 40.1 dB | 978 | 91 |
| 11 | Locked | QAM256 | 465000000 Hz | -9.9 dBmV | 40.0 dB | 890 | 93 |
| 12 | Locked | QAM256 | 471000000 Hz | -9.6 dBmV | 40.1 dB | 1970 | 277 |
| 13 | Locked | QAM256 | 477000000 Hz | -9.5 dBmV | 40.0 dB | 2231 | 468 |
| 14 | Locked | QAM256 | 483000000 Hz | -9.3 dBmV | 39.0 dB | 690 | 142 |
| 15 | Locked | QAM256 | 489000000 Hz | -9.3 dBmV | 38.9 dB | 936 | 213 |
| 16 | Locked | QAM256 | 495000000 Hz | -9.0 dBmV | 40.4 dB | 1034 | 311 |
| 17 | Locked | QAM256 | 507000000 Hz | -9.2 dBmV | 33.6 dB | 95889585 | 25834213 |
| 18 | Locked | QAM256 | 513000000 Hz | -9.5 dBmV | 34.0 dB | 329901189 | 118948671 |
| 19 | Locked | QAM256 | 519000000 Hz | -9.5 dBmV | 36.9 dB | 10638576 | 913849 |
| 20 | Locked | QAM256 | 525000000 Hz | -10.1 dBmV | 40.1 dB | 915 | 444 |
| 21 | Locked | QAM256 | 531000000 Hz | -10.0 dBmV | 39.9 dB | 963 | 333 |
| 22 | Locked | QAM256 | 537000000 Hz | -9.9 dBmV | 28.9 dB | 1336659169 | 1579175134 |
| 23 | Locked | QAM256 | 543000000 Hz | -9.9 dBmV | 31.3 dB | 809034604 | 64364718 |
| 24 | Locked | QAM256 | 549000000 Hz | -9.9 dBmV | 33.0 dB | 5823836 | 119770 |
| 25 | Locked | QAM256 | 555000000 Hz | -9.9 dBmV | 36.3 dB | 3173 | 411 |
| 26 | Locked | QAM256 | 561000000 Hz | -10.2 dBmV | 39.6 dB | 645 | 99 |
| 27 | Locked | QAM256 | 567000000 Hz | -10.4 dBmV | 35.7 dB | 7966003 | 574478 |
| 28 | Locked | QAM256 | 573000000 Hz | -10.5 dBmV | 38.1 dB | 1679 | 89 |
| 29 | Locked | QAM256 | 579000000 Hz | -10.8 dBmV | 38.3 dB | 305 | 64 |
| 30 | Locked | QAM256 | 585000000 Hz | -10.8 dBmV | 34.3 dB | 65200929 | 20104711 |
| 31 | Locked | QAM256 | 591000000 Hz | -10.8 dBmV | 35.4 dB | 43160 | 280 |
| 45 | Locked | Other | 690000000 Hz | -9.5 dBmV | 37.8 dB | 1031266843 | 764501 |
EG
Expert
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107K Messages
1 month ago
I can't post any pics / screenshots right now either. Something is wrong with the the forum software. I reported that earlier today. Use C & P text for now as you have instead. Yep. Those are low. Some of the SNR's are too low / out of spec as well. And there are a large number of uncorrected bit errors on some channels too. What do the upstream channel power values look like ?
(edited)
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XfinityBillie
Official Employee
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2.8K Messages
29 days ago
@train_wreck We appreciate all of that information you have provided, I know how vital it is to have a reliable connection, and we're happy to help you out. Given the information you've provided I'd like to look at the signals on our end as well. Please send us a DM to Xfinity Support with your full name and address.
To send a direct message:
Click "Sign In" if necessary
Click the "Direct Message" icon or https://forums.xfinity.com/direct-messaging
Click the "New message" (pen and paper) icon
The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there.
As you are typing a drop-down list appears. Select "Xfinity Support" from that list.
A "Xfinity Support" graphic replaces the "To:" line.
Type your message in the text area near the bottom of the window
Press Enter to send it
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