Great if you are using unbundled internet and are stuck between the ISP and network provider

Six months ago our home network started to become unreliable. Some days it was perfect, other days terrible. Unbundled internet means we were caught between the ISP and the network provider and each blamed the other.
After changing tbe box (twice) I discovered PingPlotter and provided the data of pinging 8.8.8.8 and 1.1.1.1 compared to home network pings to my ISP and this convinced them to call the network provider. They did their own VDSL measurements and confirmed the problem was in the cable. After going down a manhole cover and (I imagine) stripping the end off the cable and re-connecting it the problems largely went away. But then we noticed that although the network speed tripled (!) the pings showed the network dropped badly every Sunday for three successive weeks. After TWO more visits from the network provider saying nothing was wrong the network 'miraculously' became perfect again, presumably because they checked the logs and discovered further problems. Thanks PingPlotter for providing the burden of proof we needed to get things fixed!