Connection dropped every night after we changed from 250Mbs to 100Mbps

I need some expert advice here. We have had the same equipment (modem+router) for 1 year. The modem is on the approved compatibility list. We have always streamed video at night with either AppleTV or FireStick with no dropped connections ever. We started service 1 year ago @ 250Mbps. When I found out how much they wanted to charge after the promotion rate ended, I switched to 100Mbps. Max bandwidth usage is 28Mbps. Every night since then around 8-930p, we have had a brief outage, the video stops, and then service comes back on within a minute. I have tried chatting with xfinity 3 times and no real solutions. After reading a great post about modem status, I started recording the information. It seems like the levels look good, someone please let me know. Does anyone know how to fix this? Help please.

 

7/10/2020 @ 615a

***Restarted Modem to clear codeword stats

Zero corrected and uncorrectable codewords

SNR of all channels 40.8 dB on Channel 11 (CH ID 17); others 42.5 dB to 42.9 dB

Downstream Power -0.2 dBmV to 0.8 dBmV; 0.8 dBmV on Channel 2 (CH ID 😎

Upstream Power 40.3 dBmV to 42.3 dBmV

No Event Log entries

Time is PST; billing address was set for the old house; updated

 

7/10/2020 @ 206p

Zero corrected and uncorrectable codewords

SNR of all channels 40.6 dB on Channel 11 (CH ID 17); others 42.8 dB to 43.1 dB

Downstream Power -0.2 dBmV to 0.8 dBmV; 0.8 dBmV on Channel 2 (CH ID 😎

Upstream Power 40.8 dBmV to 42.8 dBmV

No Event Log entries

 

7/10/2020 @ 824p

Connection went down a minute ago and is back online

Zero corrected and uncorrectable codewords

SNR of all channels 40.7 dB on Channel 11 (CH ID 17); others 42.7 dB to 43.0 dB

Downstream Power -1.2 dBmV to 0.1 dBmV

Upstream Power 40.8 dBmV to 42.8 dBmV

No Event Log entries