Our constant quality monitoring has identified severe packet loss and latency on some TalkTalk lines connected through the South west of England and South West Wales. An incident has been raised into TalkTalk
Here is an example graph
TalkTalk are aware, it looks like a fibre break in the Plymouth area.
TalkTalk are treating this as priority one incident. More info to follow as and when.
Update from TT: "The incident is still on going and we expect it to be back up by 10pm"
lines are looking back to normal as of 18:30