Well interesting results today
![:ddb:](https://madmodder.net/Smileys/default/dancenana.gif)
Before Mr BT arrived, by chance I was running a logging program, reading noise margin figures from the Home Hub 5a, and charting them. Then the 'phone rang, one of those nuisance calls that this time did me a favour
![:lol:](https://madmodder.net/Smileys/default/kranke_200-1.gif)
The noise margins went all over the place and the Hub disconnected and restarted! When it was back up, I called my number from my mobile, and sure enough I could reproduce the effect
![:thumbup:](https://madmodder.net/Smileys/default/happy0034.gif)
So bright and early, Mr BT came, put his magic gizmo on the line, pressed a few buttons and diagnosed "Rectified Loop Fault' - most likely a damp connector block somewhere. Well the outside line comes from a pole in the road, to our gutter board, down the wall and appears on the other side of the lounge where the Master Socket is - but the Master socket has internal type wire, whereas the outside line disappears into the wall in external type cable. So there must be a joint box under the floor. 'There's your fault' he says. Hang on says I - prove it to me, ladder up to the gutter board, cut the cable and test again BOTH ways - into the house and back to the Exchange. He does this and guess where the fault is? Yes - on the line to the Exchange (Phew !!!!)
So off he trots to the Street Cabinet (which is over a mile away) does a few things, runs his tests again - ALL CLEAR. So what did he do? Used a different pair from the Street Cabinet to the Exchange, and used a different pair from our gutter board to the Cabinet (luckily it's as two pair)
The ONLY bit of cable unchanged it that under our lounge floor AS IT's OK
![:lol:](https://madmodder.net/Smileys/default/kranke_200-1.gif)
Hub up and running, seems immune to incoming calls and connected at 22 Mbps
![:clap:](https://madmodder.net/Smileys/default/happy0065.gif)
Early days of course - only been up an hour or so
![:scratch:](https://madmodder.net/Smileys/default/icon_scratch.gif)
Graph attached: 1st disturbance was the nuisance call, 2nd disturbance was me calling on my mobile.