Losing internet connection regularly - half downstream channels unlocked 0db SNR

Issue started ~6 weeks ago but resolved itself until yesterday. I noticed half of my downstream channels are unlocked with 0db SNR, tons of correctables and uncorrectables when usually they're at 0. I have lots of print-to-PDFs from over the last 6 weeks.

Currently there are 2 more channels down than the last issue - currently have only 7 downstream channels locked and OFDM Locked @ 0db SNR.