train_wreck's profile

Contributor

 • 

35 Messages

Sunday, October 13th, 2024 1:29 AM

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

Expert

 • 

107.1K 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)

Contributor

 • 

35 Messages

How the 'eck are ya EG? A consistent 45-46dBmv on the upstream at all the CPE i took a look at. Though I wouldn't be surprised if some other non-customer accessible upstream parameters were out of spec. Patiently waiting for a response or DM from Xfinity here.

Expert

 • 

107.1K Messages

@train_wreck 

I am well ! TY for asking ! Good luck with this !

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.

Was your question answered? Please mark an Accepted Answer!tick

Official Employee

 • 

2.8K Messages

1 month 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

forum icon

New to the Community?

Start Here