Could someone please have a look at my BQM and tell me if this is normal or if there seems to be some kind of issue with the connection? Other user's graphs seem to look a lot more healthier with a lot less yellow.
Why is the maximum latency so high but average seems to be 'normal'?
If the circuit is struggling for whatever reason, the BQM pings will have a higher proportion of them taking longer to turn round. When there are more long round trip times, the average ping (blue) rises. So in your graph, the denser yellow is backed up, so to say, by thicker blue.
So I've had an engineer come over yesterday and change the hub 3 to a black one.
It updated to 9.1.116V and I changed it to modem mode (the whole configuration would have been the same as the previous one) and I was expecting to see a change in the BQM. It was running for almost a day now but I still don't see any change:
Upstream, just check that the power level isn't moving because an x.8 number means it might be. If it's moving upward, then there might be an impairment to explain the BQM latency, which also shows the occasional lost packet.