Too many OFDM channel uncorrected errors causing modem reboot every 24 hrs

One of the OFDM channel always has too many uncorrect errors and cause the modem reboot ~every 24 hrs.

Modem : MB8611(Motorola) channel frequency ~957Mhz, power only ~-7.2dBm which is out of spec, SNR ~32dB.

Is there Xfinity tier 2 support here can help to run diagnosis remotely and boost the signal bit in my area?