providing the connection remains stable then the noise margin will drop to the new 3 db level and your connection speed and IP profile will then rise yes it is the exchange equipment that controls that
As to monitoring your noise margin with the HH4 you can find the noise margin in the router logs as you posted earlier
To follow up on my last post, I have just looked at posts I made last year regarding a similar issue and indeed I was getting a far higher DL sync speed at the higher noise margin. An earlier post in 2010 (pre ADSL 2+ ) was sync at a similar speed to now at the higher NM ?
BT have recently been fitting the new green box ready for Infinity , could that have caused an issue ?
My worry is that even if I sort i drop outs that my sync speed will not improve since my noise margin is at the standard 6dB ?
Sorry to keep asking daft questions, I probably sound a bit thick !
What I don't get is how before Xmas eve when the phone line started to go out and connection began to drop was I able to get a sync of 10.9 meg at a higher noise margin than I am currently getting with the 6dB margin (6.4ish )?
I have had the 10.9 sync since I went over to ADSL 2+ last year.
because of the disconnections your speed has been reduced to stabilise also the line condition will have changed possibly due to water damage just maintain the stable connection and the connection will improve for now all you can do is wait