roll back firmware update m2100

The issue is, it is only M.home using this data , apart from a few lbs of data from other processes and of course me, if I open a browser .If you opened my links you will see this .yes it is Telstra / Netgear modem .Who writes the firmware updates? .this only happened since firmware update ( see first post ) If you look back at my first thread 2 years ago you will see I had exactly the same issue . Arodi , from net gear replaced it and this fixed the issue , until ( see first post). I am not asking for a replacement , just some sort of solution . I see on Netgear support page they offer earlier versions of firmware updates for some devices , surely there is some way to uninstall this update , or some other fix . Other people who have installed this update have probably not noticed an increase in their data usage as they probably have mega GB plans but I do notice 10 or so GB going to M.home , out of my 20GB monthly plan . If this data is just being used by the interface , why is it metered , I don't have to press a key , except open glassware app to see what is using my data. As I have stated , this does not happen with other modems or if I restart this ( MR2100) modem , how do you explain that, or if I connect via ethernet lead it uses twice the data . If you look at the graphs I linked to you will see this. ( You have to right click and open image for clear view ). I suggest you read and look at my issue before asking
"what is the issue " , but thank you for your reply anyway.. Dennis.