Just today Telstra resolved a speed issue and restored my service to working order.
For the past month it was speed locked at 60Mbps and this was 24*7 so not a matter of time of day or congestion. Early in the day, the telstra tech confirmed download speeds of around 90Mbps and upload of 30-35Mbps
However, this evening my speed has dropped drastically to around 25-31Mbps Download!
I have taken screenshots of both the speed test and the modem console (which is showing max speed in excess of 100Mbps ! I just don't understand what is going wrong.....
Things I tried:
Turn modem off then on (twice)
Rebooted PC that was running the speed test
Ran speed test from wi-fi device with same results
Removed all cables from back of modem and replaced one at a time