You have really good sync figures.. but those SNR Margins aint too good at all.
>> Upstream Noise Margin 0 dB
>> Downstream Noise Margin 2147483646 dB
I dont think Ive ever seen a connected Upstream SNR actually at 0db before.
The huge number on your downstream generally means that youve gone into negative figures which your router cant report properly.
In view of the errors, and the SNR then its no wonder that you are loosing the connection.
Theres a bit more info about LowSNR which will help you understand what is going on.
http://www.kitz.co.uk/adsl/lowSNR.htmTheres also a few tips to try help improve your SNR Margin.
How long have you been on MAX - are you still in the 10 day training period?
If so it should hopefully sort itself out over a few days.
Yes you will find that its common for the errors to increase before an actual Disconnect.. and this is why you are seeing the slow laggyness.
Before trying getting a new router it may be worthwhile plugging the ST back in and getting your line stats from that - just to ensure that its not something with the Micra.
Details how to get line stats from the ST:-
http://www.kitz.co.uk/adsl/frogstats.htmAlso check using the test socket in the master socket, just to rule out the possibility of problems with internal wiring.
I notice you have interleaving applied, if you are still within the training period then its possible that the DLM may increase your Target SNR which could help stablise the line. It will give you a lower sync speed, but higher SNR Margin which should enable you to remain connected.