Slow down here too. Modem isn't dropping connections and there's fat chance I'm going through the hassle of getting engineers out again (it's a very long story that I'm fed up with, but I did eventually get them to fix the mess created by the original installer, though it took numerous call-outs over a couple of years

). There's little chance that I'll phone them though, on the basis of past experience

.
Hmm, a check of my diagnostics show that my upstream is hitting 58 (the limit) again. It's been a very long time now since I had that problem after the eventual "fix" (which took it down to around 55). I wonder if the rumours of "heat" affecting things is true? Still, the modem isn't rebooting unlike it was before (which would give me no connection for months on end) so I don't think it's that, and the SNR and downstream levels are fine.
I suspect it's not a localised problem that requires wasting an engineers and my time (god knows I've had enough time wasted by NTL), but a network problem. Still, pinging the UBR is getting timeouts, so maybe... Oh, I don't know (or care anymore)