I don't suppose you could get interleaving switched off on my line, which is a BT wholesale ADSL Max line rented through Talktalk?
I used to get 8128k syncs all the time for over a year, then had some problems with my line that caused my syncs to drop and interleaving to be put on. Openreach have now fixed the line fault, but Talktalk can't (or won't) get interleaving taken back off.
Since it is a BT service under the covers, I wonder if BT can help? Might even encourage me to migrate back to BT when my TT contract ends...
Cheers,
Axolotl