The only attention I've given to the SNRm is what the router tells me.
I sometimes get confused between SNR and SNR margin(?) but from my observations, throughout the day times it's settled on 6.0-6.1db for both upstream and downstream. When things get 'noisy' at night, it dips to around 5.7db up and 5.9 down.
EDIT: Just seen this today, worst so far across the board :
6. Data rate: 7484 / 37686
7. Maximum data rate: 7364 / 40163
8. Noise margin: 5.8 / 4.9
9. Line attenuation: 0.0 / 24.7
Finally got through to someone at BT, apparently the engineer did go to the cabinet today and the fault was 'too big for him to handle.' The way the indian woman said it did make me laugh. I retorted with 'what was he doing, fishing?'
Any ways, she ran over to the engineering department - and I believe she meant literally (which makes you wonder, if they're within close physical proximity, how come they never seem to communicate to one another?) - to resetup a new booking for Monday.
See my face now
another afternoon off of work because I want to be here to find out what exactly was going on, how it affected us, what the results were and etcetc.