Green box few hundred yards from my house have line attenuation of 12.7/12.5 noise 6.9/6.6 always had max speed past few years no problems ,but past few weeks speed has dropped from 76mb to 64mb nothing has changed at my end to impact speed drop have raised a ticket checks come back as within range,but can`t understand why past few years my line will handle anything thrown at it but now it won`t.
