I'm on the Pakuranga exchange and got broadband just as the ADSL2+ upgrade was happening.  During the few weeks of commissioning a few months ago my line would drop frequently even 10 or 20 times a day and the noise margin was around 12dB with frequent drops to 8dB or less.

Then suddenly on the last day of the commissioning period my line was stable, only sometimes gets dropped (maybe once or twice a week), and with a stable noise margin of 12dB.

This morning around 7:00 the line dropped and I see the noise margin is around 18dB.  Has anyone else noticed a significant improvement in noise margin?  If so, then I suspect Telecom has made further adjustments to the exchange.