Slow internet , Large number of uncorrectable code words

This is what I seem to be coming home to each day , slow intermittent web browsing and download speeds, the modem log is full of partial service events , reset the modem each of the last few days and it starts to build up again pretty fast. any suggestions beyond the obvious level 1 tech support which I have already run through.

Asus router AC87u

Surfboard 6190 

have tried eliminating the router same issues, do have an emta modem running the phone on a splitter also