As I was getting good error stats on my long wire from the exchange, I asked to get interleaving switched off on my line – i.e. fastpath. So with nothing else apart from standard ADSL2+ and fastpath I get:
And I get the following summary from my Netgear DG834PN
|Connection Speed||6100 kbps||1157 kbps|
|Line Attenuation||48.0 db||24.7 db|
|Noise Margin||6.1 db||6.4 db|
Assuming things stay stable (based on the advanced stats) I will go for a lower noise margin profile.