Thanks, SD.
I will see what I can do.
Of course the ping approach (to a device outside my home network) is valid with your suggestion, but with multiple devices on the home network I'd rather log the actual data volume carried over the ADSL connection than what each device handles via it's connection to the home network; I do a lot of file sharing within the network that will distort things. This implies I need a way of running a script on my BT Home Hub. It already shows me the dat volumes uploaded and downloaded since last power-on but I want to save this data to a file with timestamps to show how it develops. I also want to log the actual ADSL speed automatically with timestamps too to a file too, so I'm still open to suggestions.
Cheers,
XV105