I upgraded to Fibre Large (up to 76Mb) last Friday, and had had estimated speeds of 51Mb down and 13Mb up according to the BT and TalkTalk websites.
However, I am currently only getting 20Mb down and 12Mb up. The BTOR engineer carried out an ECLIPSE (?) test on the line, which also showed 20Mb.
Any rationale why the upload speed is close to what was estimated, whilst the download speed is a lot lower?
Talk Talk Essentials