[qasdfdsaq]

Thanks for the explanation Ignitionnet, that certainly does seem to explain what's going on. Interestingly though, this was 9am on a Monday morning, right after they'd done capacity upgrades, so curious that upstream congestion was sufficient to cause ~10% packet loss.

That said they might have still been in the middle of said upgrades at the time... Either way my upstream speed has now doubled (1.3Mb instead of 0.5-0.7) at peak time; slow progress but progress none the less...