Ongoing Uncorrectable Errors & T3 Timeouts – Mid-Split/High-Split – CM3000

Hello,

I am seeking assistance with intermittent connectivity drops and high packet loss on my Netgear Nighthawk CM3000. I am located in a Massachusetts market that recently underwent the "Next Generation" network upgrade (Mid-Split/High-Split).

The Issue:
Despite a recent technician visit confirming "good" levels, my modem logs are recording thousands of Uncorrectable Codewords within short windows (3+ hours). Specifically, I am seeing heavy ingress/noise concentrated in the 500MHz range (Channels 20-32) and the OFDM channel (194).

Current Signal Stats (without padding):

• Downstream Power: Average +7.5 to +10.5 dBmV (Approaching overdriven levels).

• Upstream Power (OFDMA): 32.3 dBmV. This appears too low to maintain a stable handshake with the CMTS, likely triggering the frequent T3 Time-outs in my Event Log.

• SNR: 41-42 dB.

• Error Rate: 8,000+ Uncorrectables on Channel 20 in under 4 hours.

Can an Official Employee please check the node health and look for Upstream Receive Power or Codeword Error Rates at the CMTS for my MAC? This looks like a "Main Drop" or "Tap" issue rather than an indoor wiring problem.