[Nikko]

It would seem the problem is with your UBR/gateway - is that a Shepshed area connection? Certainly my routeing seems cleaner:

Tracing route to cache9-nott.server.ntli.net [62.254.0.38]
over a maximum of 30 hops:

1 1 ms 1 ms 1 ms 192.168.2.1
2 9 ms 13 ms 9 ms 10.145.***.***
3 9 ms 9 ms 9 ms nott-t2cam1-b-ge-wan53-137.inet.ntl.com [80.4.46
.193]
4 11 ms 9 ms 10 ms nott-t2core-b-ge-wan72.inet.ntl.com [80.1.79.189
]
5 10 ms 10 ms 11 ms cache9-nott.server.ntli.net [62.254.0.38]

Trace complete.