Hi, for the last 2 months I've been having a lot of issues with the 350mbs service. Getting low speeds, buffering while watching Netflix and Amazon Prime, and high ping while gaming. Tried router restarts, Modem mode and it's same on Ethernet and Wifi.
I've set up a Broadband Quality Monitor the last week and it seems to be picking up high latency and some packet loss. Anyone have any ideas? Last few days of BQM below.
The power figures (Power (dBmV)) on the downstream are too high (You've only posted 9 of the 24 channels, I assume because you didn't scroll down to the rest of the data!). They should be as close to '0' as possible, they can go negative, and the max should be '10'.
Your upstream channels should be '64 qam' which none of them are!
Other than checking the wiring between your router and wall socket (make sure it's clean and secure) you'll need an engineer to investigate.
+11 is the max for downstream power - 10 is still OK and usable.
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