>> so BT Mistakenly put me on 512k even though my line is capable of much more "supposedly"
I dont think its BT (your ISP) that has done this.
I strongly suspect you are on Max (why else would there have been a few recorded FEC errors last night) .... and been rate limited by the DLM if your line has been detected as a "cronic flapper" at some point.
What I do think is interesting is within the past few months or so Ive seen a couple of instances of lines which have been DLM rate limited which generally
should in theory be very good lines.
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broadband1 -
If youre wondering what I'm talking about then having a read through
this thread which shows it all unravelling. On page 2 you will see that the ISP was even stumped at one point, and werent even aware of the fact that it had been capped by BT Wholesales DLM, then partway down that page you will see what caused the incident. Despite the electrical fault being rectified since that time the poster found himself rate limited.
What I would do is contact your ISP and tell them:-
~ Your line stats of Attenuation 27dB and SNR Margin of 30.5dB indicate that your line should be capable of the full 8Mb.
~ It is evident that your line is being rate limited at some point to 576Kbps.
You need to stress to the ISP that you suspect it could be some sort of restriction placed by BTw's Dynamic Line Management system that is stopping you attain sync any higher than 576kbps... and could they please check to see if your account has been incorrectly capped by the BTw system.