These images (IPv6, IPv6 a few seconds later, IPv4 at the same time as the 2nd IPv6 image) are taken from Ping Plotter to show the latency and packet loss to each of these hops. The major issues seem to be the hops 4, 5, and 6. This is the 2nd modem I have tried at my address, with both modems showing the same results with the exception that the 2nd modem is showing packet loss at hop 1 where the 1st modem didn't. This makes me believe that it's not anything else I can take care of on my end and hope that Comcast/Xfinity can solve this issue.
Please help.