Lost MDD timeout / T3 Timeout

here are 2 pictures of my event logs a few hours apart.

I get a few different timeouts and im unsure what they mean or indicate. My biggest issue lately has been very weak upload speeds, and packet loss..

To save a bit of trouble informatively:

Speed plan- 940mbps/35mbps 

Modem- Arris SB8200 Docsis 3.1 / 3.0

Router- Netgear Nighthawk R9000

All new coax wiring in home.

Coax running into home is only split 1 time.

-3.5db to my tv 

-3.5db to my cable modem

All ethernet cables are Cat8

All wires and connections are properly connected and not loose