You beat me to it Cardiffman282 - the hub5x doesn't work in modem mode and it appears that @fronty is able to use modem mode as they ahve a hub 5 and are still on the older DOCSIS network which uses coaxial copper cables.
I was just checking that thread, and looking at the ip address shown on the picture (only the first instance of the ip address was blanked out) in < this linked post> and then checking a postcode local to that IP shows that it doesn't appear to be a VM full fibre area so the hub 5x wouldn't be issued as it doesn't work on the old cable connection.