Also the broadband predictor is misleading:
If you go to
and enter the predictor, put in your phone number, in my case I get the following:
If you hover your mouse over the small question marks the 4.5Mb refers to the estimate and range, the 19.6Mb does not, so this actually casts doubt over the previous clause I quoted about a range not actually applying to Infinity.
It is definitely debateable and I have not noticed this before.
Have noted this for myself just in case BT do not honour their agreement with me. It all adds to the fire.
All the best
I suppose there could be an intermittent fault on the line resulting in the 58 vs 40?
The difficulty is identifying there is a fault.
In my case BT Openreach were called out and I basically stood over them (literally with an Umbrella as it was raining at the time) while they carried out the tests at different duct covers. I noted the results and have had to persue BT quite vigorously to get anywhere. I haven't succeded yet but am hopeful.
All the best
An estimate is just that, it should be an approximation of the final result given the expertise of the person giving the estimate. If the estimate is based on long experience and data in similar circumstances it should be near the actual. If there is no data of similar circumstances and the person giving the estimate has no experience the estimate could be wildly out.
HOWEVER BT are supposed to be "experts" they have been doing it long enough so their estimates should be near reality.