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Network ping spikes - Upstream Power Level (dBmV) too low according to Arris SBG8300 spec sheet
I am experiencing network ping spikes even when directly connected to modem. Arris spec sheet says I am under the specified range for Upstream Power Level. Not sure what to do.
Acceptable Signal Levels
| Acceptable Downstream Power Level | |||
| -15 dBmV to + 15 dBmV | |||
| Downstream Signal to Noise Ratio (SNR) | |||
| Modulation | Downstream Power | Acceptable Downstream SNR | |
| QAM64 | n/a | +23.5 dB or greater | |
| QAM256 | -6 dBmV to +15 dBmV | +30 dB or greater | |
| -15 dBmV to -6 dBmV | +33 dB or greater | ||
| Upstream Transmit Power Level | |||
| Index | Symbol Rate | Acceptable Upstream Power Levels | |
| Single (1) | 1280 Kysm/sec | 45 dBmV to 61 dBmV | |
| 2560 Kysm/sec | 45 dBmV to 58 dBmV | ||
| 5120 Kysm/sec | 45 dBmV to 57 dBmV | ||
| Two (2) | 1280 Kysm/sec | 45 dBmV to 58 dBmV | |
| 2560 Kysm/sec | 45 dBmV to 55 dBmV | ||
| 5120 Kysm/sec | 45 dBmV to 54 dBmV | ||
| Three or more (>=3) | 1280 Kysm/sec | 45 dBmV to 55 dBmV | |
| 2560 Kysm/sec | 45 dBmV to 52 dBmV | ||
| 5120Kysm/sec | 45 dBmV to 51 dBmV | ||
Snapshot of my cable signal:
No Responses!