So a location has a wildly variable latency response between the CPE and the first hop into the Comcast constellation. Traceroute utility in the Comcast CPE gateway (SMCD3G-CCR) details first hop times between 20 ms and 1700 ms. This directly relates to the measured speeds to the Xfinity Speed Test site, although not in a linear fashion.
On the other hand signal levels are very consistent
DS Power is -2 dbmV
SNR is 36 db
US Power is 50 dbmV
So what information do I need to communicate the Comcast to get them to fix this problem.
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