I haven't been able to run a reliable latency test (why don't plusnet provide a utility like TalkTalk do for this?), but I too have noticed latency issues.
A speedtest on my line at bt wholesale shows good line speed - 6mbs down and 780kbs up with latency stated at 45ms.
However, the last few nights, it's been taking ages for web pages to come up / turn and sometimes the request has had to be resent. I can only put this down to high latency spikes and or packet loss.
BTW, pingtest isn't very good for this purpose :
1. The latency test isn't working following the latest Java update (it tells you, you don't have Java)
2. In any event, past experience has shown that if you have a latency issue, the utility just hangs until the latency spike is over so it doesn't show in the results unless of course it reoccurs mid test. If it hangs for too long then the test ends without recording anything. Hence why Pluisnet could really do with a small desktop utility such as that on TalkTalk (their utility pings the route to a predetermined talktalk server or several popular websites (you choose before starting the test), and pings every hop 3 times recording the latency each time. It does this incrementally so rather than pinging the whole route 3 times, it does hop 1 x 3 times, then hop 2 x 3 times, then hop 3 x 3 times etc. I found this quite useful in the past for proving latency / packet loss issues as it records every hop in a table and the result can then be copied to a forum or support.
EDIT: just discovered I still have a copy of their utility but it looks as if the plusnet server ignores ping requests as all timed out.
