I have upgraded from Fibre medium to Fibre Large about 3 months ago.
My previous download speed was 22MBps on Fibre Medium. In the mean time we have eliminated all the internal wiring and have the TalkTalk super router plugged into the master socket (NTE5) which has a futher single spur going to the telephone. (No other internal wiring).
With Fibre large I am only getting a download speed consistently of 27397 which is not an improvement I expect with upgrading. However, the upload rate has improved (by nearly a 1/3rd)
We are way below the Max downstream rate (although I appreciate we may not get the actual Max).
I raised a call a couple of months ago with Tech Support...but no real answers or solutions
No obvious telephone issues/noise on the line
Here are the current router stats:
Upstream line rate (kbit/s) : 14993
Downstream line rate (kbit/s) : 27397