Have a word with the FTTP team. 0800 587 4787
they say to router there getting 800+ so should be fine!
stuck in limbo here - Cube Guy came and he’s being sent back but he just says all kid new should be fine but it’s not
when he comes I’ll get him to do the plug into the router and then he can see - new router received today and I am still getting the same speeds
Your problem is a carbon copy of mine. Constant download speeds of between 360 and 420mb done via ethernet cable to speedtesting device. I'm on full fibre to the home full fibre 900 halo 2. Rang the ftth team and they said I was getting 825mb when they ran the test!