I have a tech coming tomorrow afternoon. Hopefully the packet loss issues are replicated during that time. I don't want him to think there's "no issue" just because it doesn't show during the appointment. Then right as he leaves the problems start again.
Well show him your rather poor signal levels on your modem, and tell the tech you want them improved. Because them levels are poor and not even up to the standards of comcast. Which the tech should already know, and agree with. Also ask the tech to check for noise on the lines.