Packet loss from comcast servers only

I have been noticing packet loss to all devices wired and wireless in my house since we upgraded to gigabit internet. The issue is that when doing a tracert or using pingplotter it shows that the packet loss is only at Xfinity/Comcast servers in the route. I have tried Google's and OpenDNS DNS servers but I still have my routes trace back to the two Comcast servers and losing packets/latency there.