Well 2nd engineer came this morning, a real Broadband engineer this time...
He determined the issue is bad aluminium length which is struggling with crosstalk and also a REIN issue...
Aluminium cable issues is common around the area aparently and Openreach aren't interested in replacing any cables.... specially on BDUK funded cabs too aparently...
The REIN issue could be located if an engineer was sent out but thats a different fight and all he could do is make a note...
We also determined that BT's DSL testing kit is not G.INP capable which is fine, just shows that my speeds are well below BT's expectations...
I get the feeling that if it wasn;t for G.INP, alot of connections would now be performing underneath there expectations.... but for that matter it impressive how much improvement G.INP provides on a line too.
Shame it don't seem to be on upstream anymore....
As it stands connections still got a lot of errors on upstream, downstream has a few Errored Seconds and a mighty whole load of FEC's (which is fine because of G.INP ut theres a lot more th there should be), and currently still seeing chunks at 3-4mb a go dissapearing off my sync and SNR dipping (crosstalk...new lines..)
So the guy appologised, expressed dismay about Openreach and there inabiltiy to do whats required of them... yadda yadda yadda... oh and wished me look when the 180+ apartments next door come on... he said "that's when it will get interesting, both capacity and cable quality wise"
Think its time for some more investigations into the UK's telecoms infrastructure, it don't seem to be going in the direction it should be... however that my oppinion and I'm sure some will stick up for Openreach as usual. :L