While I have a single plug on the network I get both 'send' and 'receive' numbers on network status.

This is expected behaviour. It shows the send and receive for the entire network.

I don't think you really read carefully enough in your haste to close this.
I get nonzero numbers for send and receive when I have 1 plug and 0 points and 0 controllers on the network.
What is going on?