https://docs.rainmeter.net/manual/measures/net/
The measured value is simply the network traffic in and out of the network interface controller (NIC) of the computer running the skin. If the computer is on a local network through a router (LAN), the traffic will include all interaction between the computer and both the router and any other devices on the LAN. It will not include traffic directly to and from other devices and the internet (WAN), and so cannot be used to determine the amount of internet traffic.
You just cannot isolate traffic between your computer and another devices on the local network (LAN), from traffic coming from or going to the internet (WAN), nor can you ever know what some other device on your LAN is doing with the internet. If you are on some kind of "metered" connection to the internet, do not try to use these measures to manage that, other than in the most "approximate" kind of way.
Statistics: Posted by jsmorley — Yesterday, 2:17 pm