Funny you should mention this, my TalkTalk fibre BQM graph is very similar -
User baby_frogmella, who is on TalkTalk Business, does not suffer from this issue - his graph looks normal.
In fact I brought up this issue, showing comparative BQM graphs on the TalkTalk community forums, after asking them whether it was down to congestion about three times they eventually replied -
For fibre we dont have access to that kind of information, its held by Open Reach and not accessible to us.
I had assumed TalkTalk used their own network for fibre, from the exchange, and would know how much capacity was being used?
They also seemed to ignore the graphs and asked me to do a ping and traceroute to Google, which are not going to show anything useful unless there is a significant problem. The basic impression I got from TalkTalk OCEs is that they are only interested in dealing with significant connection faults rather than poor quality connections.
I'm glad somebody else has noticed this, perhaps we can work together to find a resolution.
EDIT: If you're not used to the TalkTalk Community forums it takes about three days from the last thread post timestamp to get an OCE reply. Every time you get a reply to your thread it moves to the back of the queue of the OCE's to-do list.
Edited by Spud2003 (Sun 04-Jan-15 14:45:05)