Had similar started last night and early this morning it was Just PPPOE session drops So something on Zen's side , A bit odd though that it wasn't listed as planned maintenance ect & nothing showing for BT either for my area code ,Good job i wasn't doing some online gaming i wouldn't of been impressed
At least the day time increased jitter level i have been seeing has been near nil today , and both F8lure and the firebrick graphs are free from increased jitter and packet loss today as well, so whatever they did may of improved the quality over some links i note that i'm connected to a different gateway that they had been using for their IPV6 trial , so maybe something to do with the trial, expanding it to all gateways ?