looks like its fixed, about a week or two after I emailed the sky uk CEO
also latency is back to old behaviour as well both ipv4 and ipv6 8ms or under.
C:\Windows\system32>ping -4 -t bbc.co.uk
Pinging bbc.co.uk [212.58.246.78] with 32 bytes of data:
Reply from 212.58.246.78: bytes=32 time=8ms TTL=57
Reply from 212.58.246.78: bytes=32 time=7ms TTL=57
Reply from 212.58.246.78: bytes=32 time=8ms TTL=57
Reply from 212.58.246.78: bytes=32 time=8ms TTL=57
Ping statistics for 212.58.246.78:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 7ms, Maximum = 8ms, Average = 7ms
Control-C
^C
C:\Windows\system32>ping -t bbc.co.uk
Pinging bbc.co.uk [2001:41c1:4008::bbc:3] with 32 bytes of data:
Reply from 2001:41c1:4008::bbc:3: time=7ms
Reply from 2001:41c1:4008::bbc:3: time=7ms
Reply from 2001:41c1:4008::bbc:3: time=8ms
Reply from 2001:41c1:4008::bbc:3: time=7ms
Ping statistics for 2001:41c1:4008::bbc:3:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 7ms, Maximum = 8ms, Average = 7ms