My HH6 in 2.5 days sent 4498mb and received 17579mb, I do not normally send much data. Is it possible from the HH6 logs to tell which device sent it?
Go to my network in hh6 and you can see the usage for each device since last hub reset.
The figures a cumulative since the last reset of the hub. After reset they are back to zero
If you reset the hub by pressing the reset button or switch hub off then I find cumulative data is lost and starts again
If you are using Win10 on your laptops you can get the last 30 days usage from settings>network&internet>Data Usage
in my HH6 if I go to advanced settings/my network/my devices I can see amount of data uploaded/downloaded by device since my last hub reset