SB8200 - High Uncorrectables on Channels 18-24 (549-585 MHz)

I am experiencing frequent drops. My Arris SB8200 status page shows over 10,000 uncorrectables specifically on Channels 18 through 24 (549-585 MHz).

• Downstream Power: 5.1–8.0 dBmV

• SNR: 40.5–43 dB

• Upstream Power: 43–44 dBmV

My signal looks great, but the high uncorrectables on that specific frequency block suggest ingress/noise. I've checked my local wiring and bypassed splitters. I need a tech to sweep the line from the tap.