AIUI on BT Wholesale connections the ISP can only request Speed, Stable and Super Stable
DLM settings. Not the specific values.
It sounds as if you were on Speed but the DLM had intervened, and has now decided your line is stable enough to put you on Fast Path. The default setting for Stable
I don't know, but maybe it is 16.
What makes you think the DLM was wrong to remove interleaving? It is possible some (ADSL) noise source has been fixed or removed.
The indispensable man or woman passes from the scene, and what happens next is more or less the same thing as was happening before.
My broadband basic info/help site - www.robertos.me.uk.
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