Visitor
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1 Message
Certain Downstream Frequencies have terrible SNR
Hi,
I'm getting a ton of dropped packets, slowness, and noise on certain frequencies for downstream channels. This has been happening for a very long time, and every time my modem locks to frequencies in this range the internet becomes almost unusable. Frequencies are in the low-to-mid 600MHz range. Sometimes I get lucky after a restart and it locks to lower frequencies that don't quite reach 600MHz and the internet behaves nicely. New lines were recently installed from the pole to my house as well.
Channel | Lock Status | Modulation | Channel ID | Frequency | Power | SNR | Correctables | Uncorrectables |
1 | Locked | QAM256 | 29 | 651000000 Hz | 0.4 dBmV | 39.9 dB | 0 | 0 |
2 | Locked | QAM256 | 17 | 579000000 Hz | 1.2 dBmV | 40 dB | 0 | 0 |
3 | Locked | QAM256 | 18 | 585000000 Hz | 1.3 dBmV | 38.9 dB | 0 | 0 |
4 | Locked | QAM256 | 19 | 591000000 Hz | 1 dBmV | 33.9 dB | 0 | 0 |
5 | Locked | QAM256 | 20 | 597000000 Hz | 0.5 dBmV | 35.2 dB | 0 | 0 |
6 | Locked | QAM256 | 21 | 603000000 Hz | 0 dBmV | 37.4 dB | 0 | 0 |
7 | Locked | QAM256 | 22 | 609000000 Hz | -0.5 dBmV | 39.5 dB | 0 | 0 |
8 | Locked | QAM256 | 23 | 615000000 Hz | -0.8 dBmV | 39.5 dB | 0 | 0 |
9 | Locked | QAM256 | 24 | 621000000 Hz | -1.1 dBmV | 35.5 dB | 20489118 | 12248870 |
10 | Locked | QAM256 | 25 | 627000000 Hz | -1.1 dBmV | 29.2 dB | 318027 | 1450910 |
11 | Locked | QAM256 | 26 | 633000000 Hz | -1 dBmV | 33.3 dB | 357279 | 1340107 |
12 | Locked | QAM256 | 27 | 639000000 Hz | -0.6 dBmV | 34.5 dB | 361754 | 1351104 |
13 | Not Locked | Unknown | 28 | 645000000 Hz | 0.0 dBmV | 0.0 dB | 0 | 0 |
14 | Locked | QAM256 | 30 | 657000000 Hz | 0.7 dBmV | 40.1 dB | 0 | 0 |
15 | Locked | QAM256 | 31 | 663000000 Hz | 0.7 dBmV | 40.1 dB | 0 | 0 |
16 | Locked | QAM256 | 32 | 669000000 Hz | 0.5 dBmV | 40.1 dB | 0 | 0 |
EG
Expert
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111.4K Messages
4 years ago
Please also post the *Upstream Power Level* numbers and the error log entries (if any).
What's the exact make and model number of the modem ?
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