Btw I contacted bt hours before u asked me.
If they find the fault in your wiring, they will charge you > £100, as they would have warned you when you booked eng.
Have you tried test socket behind faceplate to get the router stats?
1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC