you max attainable is 55mb and you currently have a 49mb conenction speed which is within your estimated range if you conenction has been dropping and/or you have been resetting trying to improve your speed then you could be in a banded profile as @licquorice said
however whatever happens I would go for infinity 1 and save the money
17070 2 leaves the line quiet as death.
I have not been resetting. I just gave up as it slowly declined (date/time/UP/DOWN)
15/08/2017 | 14:12 | 10.85 | 59.72 |
16/08/2018 | 16:20 | 9.64 | 49 |
Frankly, though nowhere near what was promised, it's good enough that I can't be bothered to call Openreach again.
So Fibre 1 it is, and I'll save the £7.50 per month.