Broadband Max products (the up to 8 and 24Mbps ones) aren't sold to ISP's by
BT Wholesale with contention ratios anymore - that was stopped a few years
...
Talk Talk advised me today that Orange use 75:1 contention ratios whereas 50:1 is more usual. This could explain things but not sure if it is true (would Talk Talk be allowed to say that if it wasn't) ...
OK, they turned interleaving off (the technical person who I spoke to did not seem to really know what it was). At first, it seemed to help, but really all it did was make my ping less during the 'goo ...