@imjolly - I moved house taking my BT Infinity Option 2 with me. Then I downgraded to BT Option 1. Although there were multiple issues along the way with BT first not thinking I was in an Infinity area but a BT Faster Broadband one. So in the ins and outs of that who knows what actually happened.
If you have now been put on the fibre 40/2 profile for good technical reasons at your new location then you might want to ask BT about being moved onto the matching Unlimited Faster Broadband BT Consumer product. Why? Because last time I looked it was £2 cheaper than Unlimited BT Infinity 1 and also came with 50GB Cloud storage rather than 5GB. BT do try and make up a bit for the slower speeds.
I am pleased to confirm that I am now on the 40/10 product (the router seemed to reset itself around 1am).
The upload sync speed is still about the same though. Here are the router stats:
I thought I would try a router reset (though the pin hole at back), just out of interest to see what would happen and here are the stats after a reset:
A long way off the estimated 4.3 to 6.4Mbps. Openreach engineer yesterday confirmed that line is excellent quality and definitely clean, not impacted.
I suspect there is nothing further that can be done, but I will await a call back from BT on Friday in case they have any further suggestions!
that's good got profile changed to infinity 1 10mb but up conenction speed still the same as expected
I'm writing a final update on this thread.
BT kindly offered to send out a second engineer, who reset the DLM and also checked the quality of the line. The DLM reset didn't increase the speed and the line was perfect. He even tried a different port at the cab, which had no effect.
I am happy that everything has been tried and will just accept the slow upload. I suspect it is down to specific characteristics of this line, which is perhaps loosing the higher frequencies over a shorter distance than your average line.
Thanks to everyone for their input. Bring on nationwide fibre to the home!