Intermittent internet loss - high number of correctables on one channel

I'm getting lousy internet connectivity intermittently, typically in the morning. When I'm connected, speeds are very high and I'm very happy. But this loss of internet (for a few minutes, over and over again) is not good. While I am a computer guy, I'm not a hardware guy, but I started looking at the modem stats. I'm on a Netgear CM1150V.

First thing that concerned me was that channel 32 is ringing up tons of errors (currently 1173532 Correctable and 49694 Uncorrectable, with a 14 minute uptime).  No errors on any other channel. 

The logs are spitting out "UCD invalid or channel unusable" messages, mixed in with "Started Unicast Maintenance Ranging - No Response received "

Does anyone have any bright ideas about what's going on?

Many thanks