Hi bm,
I'm sorry you've been having this experience. Looking at your log, I'm in agreement. SNR and all is looking fine, but those errors and slight power adjustments need to be looked into. I would advise the basics like checking to ensure the connections are tight and bypassing any visible splitters between the modem and cable outlet. If you've already completed those steps, I would recommend a tech visit. If you would like to arrange that or need further assistance, please email me at cox.help@cox.com.
Thank you.