sorry, just caught up on this.
the line comes into the house and at that first box there is an extension hardwired in which then goes into the living room. at the end of that is a small 'mobile' box (about 2" by 1" by .5") into which is plugged the filter into which is plugged the phone and the router cable.
have tried a different filter ... same result
what do i try?
idiot proof instructions please