This is a test result just done with BT Wholesale checker:
the "Further Diagnostics" option isn't working for me at the moment.
But this is from a Plusnet test 18 months ago.
I'm not that concerned about the drop 30Mb is fine. I was just curious about the cause of the drop - at this rate it will probably be 25mb by the time my 18 month contract is up next February.
All the Further diagnostics
does is retrieve your IP Profile and draw the pretty graphs. No extra diagnosing.
On a TalkTalk connection there is no IP Profile. It is entirely a BT Wholesale feature. Hence, no Further diagnostics
I note that on Plusnet you were on an 80/20 sync'ed at ~46Mbps. (Calculated from the P Profile of 44.64Mbps). A speed test result of 35.94Mbps against that is rather poor!
I suspect that even if there is an external problem you have quite a big domestic one. That may have got worse.
Are you testing wired or wireless, and have you added or replaced any electrical or electronic kit since you were getting the 38Mbps that is to be expected on that line?
Kindness isn't going to cure the world of all its awfulness but it's a good place to begin. Daisy Ridley.
My broadband basic info/help site - www.robertos.me.uk.
Domains, site and mail hosting - Tsohost
Connection - AAISP Home::1 80/20. Sync 57791/14021kbps @ 600m. - BQM