Over a week of problems

For over a week I have been calling in with problems with my internet connection. Before 10 days ago my average down was 940mb and up was 41, over last 9 to 10 days its all over with huge amounts of packet losss. Support said change modem from xb6 to xb7. I did, then again they said change it maybe bad modem. 3rd time I went and bought an arris sb8200. It has been slightly better but still huge problems. Techs on phone say no signal problems but my event list says different. I have even gone to the point of directly connecting the modem to the line outside coming from the pole to check if it is inside wiring. Same problem. I will attach pictures of the current signals and events from the last reset of modem this morning. Added I have had 3 techs schduled to be here and all 3 have been cancelled without telling me even.