Ok things checked/actioned: Rebooted modem (latest V4), checked coax, checked Cat6 cables, WiFi is off on the modem.
Running speed tests directly at the modem with my laptop (less than 18 months old running the latest version of Win 10 and using the admin account) with a WIRED connection, today I am getting ~60-90Mb down out of 1000Mb.
Have had the Gig service for about 12 months now and I never get more than ~500Mb.
Have phoned on multiple occasions to be told there is nothing wrong with the modem or last mile.
Anyone any suggestions other than phoning in.
Am gonna be phoning in to claim about 12 months worth of my service costs back.
At a loss & frustrated
P.S. I am technically adept having managed the infrastructure for a major global company for many years
Time heals nothing, it merely rearranges our memory