Hi everyone. I have a CM600 that, every so often, will apparently lose its sync with my Cox Ultimate internet service, necessitating a power cycling to get things going again. In other words, ALL indicator LEDs blinking (and no internet connection), I unplug/plug power, and then all is well (green). A Cox tech came out yesterday because of other issues, replaced a bad splitter, checked signal levels, etc. Thought that would solve the issue, but it seems to have persisted. Also, a recent look at my signal levels via the Netgear diagnostic revealed what seems to be some problematic error rates ("correctables") on several channels. Am I interpreting that correctly?
Could I possibly have a modem with overheating or other issues? Any thoughts would be appreciated -- and thanks in advance.
Here's a recent screenshot of my status page. Modem is running latest Cox firmware:
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Frequency start Value |
This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect. |
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Startup Procedure |
Procedure | Status | Comment | Acquire Downstream Channel | 753000000 Hz | Locked | Connectivity State | OK | Operational | Boot State | OK | Operational | Security | Enable | BPI+ | IP Provisioning Mode | Honor MDD | IPv4 only |
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Downstream Bonded Channels |
Channel | Lock Status | Modulation | Channel ID | Frequency | Power | SNR | Correctables | Uncorrectables | 1 | Locked | QAM256 | 77 | 753000000 Hz | -6.6 dBmV | 38.2 dB | 0 | 0 | 2 | Locked | QAM256 | 73 | 729000000 Hz | -5.5 dBmV | 38.6 dB | 0 | 0 | 3 | Locked | QAM256 | 74 | 735000000 Hz | -5.8 dBmV | 38.5 dB | 0 | 0 | 4 | Locked | QAM256 | 75 | 741000000 Hz | -6.1 dBmV | 38.3 dB | 0 | 0 | 5 | Locked | QAM256 | 76 | 747000000 Hz | -6.3 dBmV | 38.3 dB | 0 | 0 | 6 | Locked | QAM256 | 78 | 759000000 Hz | -6.9 dBmV | 37.8 dB | 0 | 0 | 7 | Locked | QAM256 | 79 | 765000000 Hz | -7.1 dBmV | 37.9 dB | 0 | 0 | 8 | Locked | QAM256 | 80 | 771000000 Hz | -7.3 dBmV | 37.7 dB | 0 | 0 | 9 | Locked | QAM256 | 81 | 777000000 Hz | -7.3 dBmV | 37.7 dB | 0 | 0 | 10 | Locked | QAM256 | 82 | 783000000 Hz | -7.6 dBmV | 37.6 dB | 0 | 0 | 11 | Locked | QAM256 | 83 | 789000000 Hz | -7.5 dBmV | 37.7 dB | 0 | 0 | 12 | Locked | QAM256 | 84 | 795000000 Hz | -7.5 dBmV | 37.7 dB | 0 | 0 | 13 | Locked | QAM256 | 85 | 801000000 Hz | -7.4 dBmV | 37.6 dB | 0 | 0 | 14 | Locked | QAM256 | 86 | 807000000 Hz | -7.5 dBmV | 37.8 dB | 0 | 0 | 15 | Locked | QAM256 | 87 | 813000000 Hz | -7.3 dBmV | 37.9 dB | 0 | 0 | 16 | Locked | QAM256 | 88 | 819000000 Hz | -7.4 dBmV | 37.8 dB | 0 | 0 | 17 | Locked | QAM256 | 89 | 825000000 Hz | -7.0 dBmV | 36.5 dB | 7387 | 1 | 18 | Locked | QAM256 | 90 | 831000000 Hz | -6.9 dBmV | 36.5 dB | 7512 | 0 | 19 | Locked | QAM256 | 91 | 837000000 Hz | -7.1 dBmV | 36.5 dB | 7215 | 0 | 20 | Locked | QAM256 | 92 | 843000000 Hz | -7.3 dBmV | 36.5 dB | 8315 | 0 | 21 | Locked | QAM256 | 93 | 849000000 Hz | -7.4 dBmV | 36.5 dB | 8049 | 1 | 22 | Locked | QAM256 | 94 | 855000000 Hz | -8.1 dBmV | 35.9 dB | 8434 | 0 | 23 | Locked | QAM256 | 95 | 861000000 Hz | -8.6 dBmV | 35.5 dB | 8928 | 1 | 24 | Locked | QAM256 | 96 | 867000000 Hz | -8.5 dBmV | 35.7 dB | 9234 | 0 |
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Upstream Bonded Channels |
Channel | Lock Status | US Channel Type | Channel ID | Symbol Rate | Frequency | Power | 1 | Locked | ATDMA | 1 | 5120 Ksym/sec | 36685000 Hz | 42.8 dBmV | 2 | Locked | ATDMA | 2 | 5120 Ksym/sec | 30285000 Hz | 43.5 dBmV | 3 | Locked | ATDMA | 3 | 5120 Ksym/sec | 23885000 Hz | 43.5 dBmV | 4 | Locked | TDMA and ATDMA | 4 | 2560 Ksym/sec | 19085000 Hz | 42.0 dBmV | 5 | Not Locked | Unknown | 0 | 0 Ksym/sec | 0 Hz | 0.0 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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