High Uncorrectable Codewords and frequent internet drops

Previous tech supprt suggested I needed to update my customer owned modem to a new Xfinity provided option to fix frequent drop internet outs. But even after the install there is still multiple drop outs on wifi and wired devices through the day.  

There is no other devices or splinters in-between the input to the house and the modem. 

Downstream

SNR

46.0 dB

46.1 dB

46.0 dB

45.9 dB

45.9 dB

45.8 dB

45.9 dB

46.0 dB

46.1 dB

46.0 dB

46.1 dB

46.3 dB

46.1 dB

46.2 dB

46.1 dB

46.3 dB

46.0 dB

46.3 dB

46.3 dB

46.3 dB

46.3 dB

46.3 dB

46.3 dB

46.4 dB

46.3 dB

46.3 dB

46.0 dB

45.8 dB

46.0 dB

46.1 dB

46.1 dB

45.5 dB

45.9 dB

45.4 dB

Power Level 

7.7 dBmV

7.5 dBmV

7.4 dBmV

7.4 dBmV

7.4 dBmV

7.4 dBmV

7.5 dBmV

7.6 dBmV

7.8 dBmV

7.9 dBmV

8.0 dBmV

8.1 dBmV

8.2 dBmV

8.3 dBmV

8.4 dBmV

8.4 dBmV

8.5 dBmV

8.6 dBmV

8.6 dBmV

8.7 dBmV

8.8 dBmV

8.8 dBmV

8.8 dBmV

8.8 dBmV

8.8 dBmV

8.8 dBmV

8.5 dBmV

8.2 dBmV

8.4 dBmV

8.6 dBmV

8.8 dBmV

8.8 dBmV

9.2 dBmV

10.3 dBmV

Modulation 

256 QAM

256 QAM

256 QAM

Upstream 

Power Level 

45.8 dBmV

46.0 dBmV

46.5 dBmV

46.5 dBmV

41.7 dBmV

CM error codewords 

Channel 20 

Correctable 39346361

Channel 41 

Correctable 66708

Uncorrectable 124105

Channel 42 

correctable 40523

Uncorrectable 82991

There are more and various others on other channels but this gives an idea of the issues.