Good speed, naff latency, services AWOL

Evening all. Been having weird problems the last few weeks - can't work it out.

First off, my TBB and Speedtest.net speedtests. Both showing near as dammit the 120Mb max for my service. This is pretty rare for me. Only since these other problems began have I been able to acheive anything like my headline speed.

Now moving on, although the latency on my TBB test looks good, it isn't in fact anything like as good as that. This is showing up in online games like Battlefield and Planetside 2 and is making them play like [censored].

Further evidence in a couple of simple ping tests.

Pinging www.virginmedia.com [212.250.162.12] with 32 bytes of data:
Reply from 212.250.162.12: bytes=32 time=1145ms TTL=119
Reply from 212.250.162.12: bytes=32 time=118ms TTL=119
Reply from 212.250.162.12: bytes=32 time=2359ms TTL=119
Request timed out.
Request timed out.
Reply from 212.250.162.12: bytes=32 time=1312ms TTL=119
Reply from 212.250.162.12: bytes=32 time=90ms TTL=119
Reply from 212.250.162.12: bytes=32 time=26ms TTL=119
Reply from 212.250.162.12: bytes=32 time=29ms TTL=119
Reply from 212.250.162.12: bytes=32 time=29ms TTL=119

Ping statistics for 212.250.162.12:
Packets: Sent = 10, Received = 8, Lost = 2 (20% loss),
Approximate round trip times in milli-seconds:
Minimum = 26ms, Maximum = 2359ms, Average = 638ms

Pinging www.bbc.net.uk [212.58.246.90] with 32 bytes of data:
Reply from 212.58.246.90: bytes=32 time=3617ms TTL=54
Reply from 212.58.246.90: bytes=32 time=181ms TTL=54
Reply from 212.58.246.90: bytes=32 time=922ms TTL=54
Reply from 212.58.246.90: bytes=32 time=151ms TTL=54
Reply from 212.58.246.90: bytes=32 time=200ms TTL=54
Reply from 212.58.246.90: bytes=32 time=1689ms TTL=54
Reply from 212.58.246.90: bytes=32 time=235ms TTL=54
Reply from 212.58.246.90: bytes=32 time=3567ms TTL=54
Reply from 212.58.246.90: bytes=32 time=26ms TTL=54
Reply from 212.58.246.90: bytes=32 time=44ms TTL=54

Ping statistics for 212.58.246.90:
Packets: Sent = 10, Received = 10, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 26ms, Maximum = 3617ms, Average = 1063ms


Furthermore, I've been unable to sign in to Skype on any of our 3 machines for a couple of weeks, and the National Lottery website tells me I can't log in as they think I'm outside the UK.

All possibly unrelated issues, but it all started about 2 weeks ago. Anyone else noticing anything like this going on?

Well, all sorted as of about 48 hours ago. Long may good service continue.