BTWholesale try this approach Adrian talks of, Currently i'm seeing contention early evening 5-6pm on occasions and peak time evening at so point between 8-12pm, Increase in jitter too as well as inconsistent throughput to levels that fail the BTW TAP3 test, My ISP zen after some conversation with BT report that they cannot find and problem with the connection and had conveniently passed the buck to BT OR , for an engineer's visit, lol So i have explained once again the issue is contention during peak hours and that no engineer visiting my home is going to fix that, and that the issue is not with my equipment or anything my side of the demarcation point, and requested the escalate it and request that they change the SVLAN to a less utilised one , as i am not agreeing to pay charges for an engineer visit that will not fix the issue