then you have some bad connection somewhere in your internal extensions
Its just strange the other day it was fine, unplugged in and put it straight back nothing was changed etc, perhaps the line was busy so it screwed itself up will have a better look later
There are 3 sky boxes, none of which have filters.
Still can't reach the max 8000+ i was syncing at the other day
presumably not connected to the phone line if they don't have filters either that or filtered faceplate must have filters if connected to phoneline