Up and down levels are both within the desired range. You can see that the modem's downstream error counters were reset to zero, which makes it impossible to see what is really taking place on the trunk cable. This often happens when you cycle power to the modem, so DON'T DO THAT! Capture and post the signal level page again after at least 12 hours.
At that time you should expect to see a few hundred corrected errors on each channel, but only a few uncorrectibles. Neither should increase much after the first 12 hours, when the modem "trains" and adjusts itself to the incoming DS signal levels. If uncorrectible errors greatly exceed correcteds, that usually points to ingress, which is signals or noise leaking into the cable system from the outside world. Corrected errors won't usually affect 'ping' times, but uncorrected errrors will add up quickly and increase network delays.
