An hour or so ago, for no apparent reason, my download speeds plummeted to as little as 0.5 Mbps, and are now averaging around 6 or 7 Mbps. This is way below my normal value of nearly always just under 30 Mbps. Upload speeds are 'normal' at about 10 Mbps. Can anyone tell me if this is also happening to them or is it likely to be specific to my WISP? I have checked the fault section and it says there are no known issues.