I have noticed that during a quiet line test I can hear interference coming from the router, turn the router off and line generally goes quiet, with router on I can hear some background interference as it tries to connect. But I have tried a different router and the same still happens.
Is this a line fault or a fault with my equipment, I can't see how two routers could go wrong at the same time.
Line stats from router:
noise margin upstream: 5 to 6 db
output power downstream: 19 db
attenuation upstream: 22 db
noise margin downstream: -4 to 9 db
output power upstream: 12 db
attenuation downstream: 39 to 41 db
Edited by NickC (Mon 19-Jan-15 21:57:10)