So, Everything pointed towards a 76/20 performance from my FTTC unlimited upgrade Running a download/upload test program (Jack Dinns Auto Speed Tester) confirms the 20mb upload but however I have failed to get anywhere near 76Mb max consistently [I realise running a bandwidth test when other activities are taking place will show a reduced bandwidth so running it hourly 24/7] I do also realise that swapping over the FTTC modems can result in a speed drop, but using a colleagues modified BT Openreach modem (unlocked to allow stats to be downloaded) I got the following linestats data out using eDMT I have used DMT many times on ordinary (non-fibre) broadband connections and it is very informative and is compatible with a wide range of modems: http://dmt.mhilfe.de/ - I would like to find a description of each of the plots and their real relevance to FTTC performance.....
Note the dip in the SNR plot..... n.b the stats relate to a relatively short period of download/upload
Sadly the record below shows a period of testing for the original BT modem and an all-in-one Netgear device (modem & router combined) that I was given as an alternative device
A visit from Mr Openreach ended in me being told my line was basically perfect and one of the best he had seen.... Question 1 - Can these linestats be extracted without the need for the use of an "enabled" device like the breathed on /r ECI BT modem? Are there other modems or modem/routers that spill the beans more readily? Question 2: - do the line stats suggest a problem that can be solved? why the dip in the SNR graph otherwise? I'm uncertain as to what the plots mean Happy New year Dr B