No, this option is required because it loads up a special network driver that captures additional traffic info such as:
- Process name (app) - used in the Apps report.
- Where it comes from - used to filter out incoming LAN traffic.
- Where it goes to - used to filter out outgoing LAN traffic.
When you tick the Ignore LAN traffic option, it's common to expect up to 10% under-reporting because in this mode NetWorx does not record what's called TCP/IP overhead.
If you would like to equalise the readings, you can do so in the
hidden settings. There is one parameter called
Usage Adjustment Factor. Set it to a value that represent the difference, e.g. 1.1 and NetWorx reading should match the ISP's ones.