DLM may reset when you move so improve for a while, but if conditions are such that line is long or suffers noise then DLM will end up where you are today.
Differences that may change this:
Different broadband modem, could be better or worse
Three DLM profiles exist, they have marginally different criteria and might with another provider see it not drop you so much.
The overall expectation though is connection speeds will stay the same, though the improvement might be that HD material will stream again, with 14 to 15 Mbps it should work anyway.
Engineer just been and no fault found on the line, could be intermittent fault.
Only other thing he said could be causing it is an old extension in our living room as we don't know the history of it and if it had been completed isolated from the socket but at time of testing no issues.
They reset the line which I presume is the DLM?
Just logged onto router and this is what I'm getting now, how do these look/compare to the others I've posted? I know it will and been told it will take time to settle but speedtest showing 20/4 speeds now which is great.
This page shows information about your DSL connection. If you are using Ethernet Broadband then this page is not applicable.
Line Status -- UP
Link Type -- Fast Path
Operation Mode Automatic G.993.2 (VDSL2)
DATA RATE INFORMATION
Upstream 4422 (Kbps)
Downstream 27689 (Kbps)
Operation Data Upstream Downstream
Noise Margin 6.2 (dB) 6.2 (dB)
Line Attenuation 0.0 (dB) 27.4 (dB)
Indicator Name Near End Indicator Far End Indicator
Output Power 6.9 (dBm) 7.0 (dBm)
Fast Path FEC Correction 696 1
Interleaved Path FEC Correction -- --
Fast Path CRC Error 0 144
Interleaved Path CRC Error -- --
Loss Of Signal Defect 0 0
Fast Path HEC Error STR 0 162
Interleaved Path HEC Error -- --
Error Seconds 269 21
Received Data 8568625 (Kbits)
Transmitted Data 413735 (Kbits)