Same issue. Black router. Issue poccurs even if within a metre of the reuter. Affecting multiple devices of different types. Connection jumps between 5Gb and 150Gb when done seconds apart from each other.
Additional tests done using pathping etc indicate there is an issue on the line somewhere. The ping time usually showing 1-5 Ms but every now and then it jumps to near 200 Ms. To make it worse, its an intermittent issue and is preventing me fro retaining a continuous connection whcih then times me out of disconects me from all my services.
Called Sky to explain this months ago and nothing has been done or followed up. They also make it an absolutey nightmare to make contact - cannot find a number from them anymore
